[v6.1] INFO: rcu detected stall in sys_socket (3)
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syzbot
Sep 8, 2025, 9:58:31 PMSep 8
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 28c695c365e1 Linux 6.1.150
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=168b0b12580000
kernel config: https://syzkaller.appspot.com/x/.config?x=cc3aff322420b627
dashboard link: https://syzkaller.appspot.com/bug?extid=6f9608a27846cc108b6b
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/469ee0d9feec/disk-28c695c3.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/0df88732ae21/vmlinux-28c695c3.xz
kernel image: https://storage.googleapis.com/syzbot-assets/192a7b0e5295/bzImage-28c695c3.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6f9608...@syzkaller.appspotmail.com
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2659 jiffies s: 43497 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9968 Comm: syz.9.1426 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:memset+0x0/0x40 mm/kasan/shadow.c:43
Code: 3b 08 31 ed eb d7 00 00 cc cc 89 f6 48 8b 0c 24 31 d2 e9 a3 ec ff ff 0f 1f 00 89 f6 48 8b 0c 24 ba 01 00 00 00 e9 90 ec ff ff <55> 41 56 53 48 89 d3 89 f5 49 89 fe 48 8b 4c 24 18 48 89 d6 ba 01
RSP: 0018:ffffc90000007418 EFLAGS: 00000046
RAX: ffffffff81a32ebf RBX: 1ffff92000000e88 RCX: ffff888079511dc0
RDX: 0000000000000038 RSI: 0000000000000000 RDI: ffffc90000007460
RBP: ffffc90000007530 R08: dffffc0000000000 R09: fffffbfff215c449
R10: fffffbfff215c449 R11: 1ffffffff215c448 R12: ffffc90000007680
R13: ffff8880760dc800 R14: ffffc90000007460 R15: ffffc900000074c0
FS: 00007f237ba566c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79a23f41d0 CR3: 0000000048d67000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
<IRQ>
__perf_event_output kernel/events/core.c:7723 [inline]
perf_event_output_forward+0x14d/0x2a0 kernel/events/core.c:7750
__perf_event_overflow+0x448/0x610 kernel/events/core.c:9496
perf_swevent_overflow kernel/events/core.c:9572 [inline]
perf_swevent_event+0x4ad/0x530 kernel/events/core.c:9610
perf_tp_event+0x335/0xb60 kernel/events/core.c:10029
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10002
perf_trace_preemptirq_template+0x287/0x330 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x84/0x500 kernel/rcu/tree_plugin.h:685
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 5d 97 96 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90000007aa0 EFLAGS: 00000206
RAX: 94e0e68b3c22c800 RBX: 1ffff92000000f5c RCX: 94e0e68b3c22c800
RDX: dffffc0000000000 RSI: ffffffff8a8c0300 RDI: ffffffff8adefae0
RBP: ffffc90000007b90 R08: dffffc0000000000 R09: ffffed10171c6af6
R10: ffffed10171c6af6 R11: 1ffff110171c6af5 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
rcu_read_unlock include/linux/rcupdate.h:823 [inline]
ieee80211_iterate_active_interfaces_atomic+0x156/0x170 net/mac80211/util.c:826
mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
__run_hrtimer kernel/time/hrtimer.c:1752 [inline]
__hrtimer_run_queues+0x554/0xd60 kernel/time/hrtimer.c:1816
hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1833
handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:memcg_account_kmem+0x176/0x1b0 mm/memcontrol.c:-1
Code: 3b 44 24 60 75 1f 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 0a 10 3f 08 41 f7 c6 00 02 00 00 75 a7 eb a6 e8 ea 0f 3f 08 <48> 81 c3 c0 02 00 00 44 89 f8 45 85 ff 7e 0c 89 c6 48 89 df e8 21
RSP: 0018:ffffc900047979c0 EFLAGS: 00000206
RAX: 94e0e68b3c22c800 RBX: ffff888029892000 RCX: 94e0e68b3c22c800
RDX: dffffc0000000000 RSI: ffffffff8a8c0300 RDI: ffffffff8adefae0
RBP: ffffc90004797a70 R08: dffffc0000000000 R09: ffffed10171c6af6
R10: ffffed10171c6af6 R11: 1ffff110171c6af5 R12: 00000000ffffffff
R13: 1ffff920008f2f38 R14: 0000000000000a02 R15: 00000000ffffffff
obj_cgroup_uncharge_pages mm/memcontrol.c:3077 [inline]
refill_obj_stock+0x3ed/0x680 mm/memcontrol.c:3350
obj_cgroup_charge+0x3bf/0x610 mm/memcontrol.c:3392
memcg_slab_pre_alloc_hook mm/slab.h:501 [inline]
slab_pre_alloc_hook+0x2e7/0x310 mm/slab.h:715
slab_alloc_node mm/slub.c:3318 [inline]
slab_alloc mm/slub.c:3406 [inline]
__kmem_cache_alloc_lru mm/slub.c:3413 [inline]
kmem_cache_alloc_lru+0x49/0x2e0 mm/slub.c:3429
__d_alloc+0x31/0x700 fs/dcache.c:1774
d_alloc_pseudo+0x19/0x70 fs/dcache.c:1904
alloc_file_pseudo+0xc8/0x1f0 fs/file_table.c:265
sock_alloc_file+0xb3/0x240 net/socket.c:467
sock_map_fd net/socket.c:491 [inline]
__sys_socket+0x12a/0x190 net/socket.c:1679
__do_sys_socket net/socket.c:1684 [inline]
__se_sys_socket net/socket.c:1682 [inline]
__x64_sys_socket+0x76/0x80 net/socket.c:1682
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f237ab8ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f237ba56038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f237adc6090 RCX: 00007f237ab8ebe9
RDX: 0000000000000010 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007f237ac11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f237adc6128 R14: 00007f237adc6090 R15: 00007ffc0bd6be38
</TASK>
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: 28c695c365e1 Linux 6.1.150
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=168b0b12580000
kernel config: https://syzkaller.appspot.com/x/.config?x=cc3aff322420b627
dashboard link: https://syzkaller.appspot.com/bug?extid=6f9608a27846cc108b6b
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/469ee0d9feec/disk-28c695c3.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/0df88732ae21/vmlinux-28c695c3.xz
kernel image: https://storage.googleapis.com/syzbot-assets/192a7b0e5295/bzImage-28c695c3.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6f9608...@syzkaller.appspotmail.com
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2659 jiffies s: 43497 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9968 Comm: syz.9.1426 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:memset+0x0/0x40 mm/kasan/shadow.c:43
Code: 3b 08 31 ed eb d7 00 00 cc cc 89 f6 48 8b 0c 24 31 d2 e9 a3 ec ff ff 0f 1f 00 89 f6 48 8b 0c 24 ba 01 00 00 00 e9 90 ec ff ff <55> 41 56 53 48 89 d3 89 f5 49 89 fe 48 8b 4c 24 18 48 89 d6 ba 01
RSP: 0018:ffffc90000007418 EFLAGS: 00000046
RAX: ffffffff81a32ebf RBX: 1ffff92000000e88 RCX: ffff888079511dc0
RDX: 0000000000000038 RSI: 0000000000000000 RDI: ffffc90000007460
RBP: ffffc90000007530 R08: dffffc0000000000 R09: fffffbfff215c449
R10: fffffbfff215c449 R11: 1ffffffff215c448 R12: ffffc90000007680
R13: ffff8880760dc800 R14: ffffc90000007460 R15: ffffc900000074c0
FS: 00007f237ba566c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f79a23f41d0 CR3: 0000000048d67000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
<IRQ>
__perf_event_output kernel/events/core.c:7723 [inline]
perf_event_output_forward+0x14d/0x2a0 kernel/events/core.c:7750
__perf_event_overflow+0x448/0x610 kernel/events/core.c:9496
perf_swevent_overflow kernel/events/core.c:9572 [inline]
perf_swevent_event+0x4ad/0x530 kernel/events/core.c:9610
perf_tp_event+0x335/0xb60 kernel/events/core.c:10029
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10002
perf_trace_preemptirq_template+0x287/0x330 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x84/0x500 kernel/rcu/tree_plugin.h:685
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 5d 97 96 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc90000007aa0 EFLAGS: 00000206
RAX: 94e0e68b3c22c800 RBX: 1ffff92000000f5c RCX: 94e0e68b3c22c800
RDX: dffffc0000000000 RSI: ffffffff8a8c0300 RDI: ffffffff8adefae0
RBP: ffffc90000007b90 R08: dffffc0000000000 R09: ffffed10171c6af6
R10: ffffed10171c6af6 R11: 1ffff110171c6af5 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
rcu_read_unlock include/linux/rcupdate.h:823 [inline]
ieee80211_iterate_active_interfaces_atomic+0x156/0x170 net/mac80211/util.c:826
mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
__run_hrtimer kernel/time/hrtimer.c:1752 [inline]
__hrtimer_run_queues+0x554/0xd60 kernel/time/hrtimer.c:1816
hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1833
handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:memcg_account_kmem+0x176/0x1b0 mm/memcontrol.c:-1
Code: 3b 44 24 60 75 1f 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 0a 10 3f 08 41 f7 c6 00 02 00 00 75 a7 eb a6 e8 ea 0f 3f 08 <48> 81 c3 c0 02 00 00 44 89 f8 45 85 ff 7e 0c 89 c6 48 89 df e8 21
RSP: 0018:ffffc900047979c0 EFLAGS: 00000206
RAX: 94e0e68b3c22c800 RBX: ffff888029892000 RCX: 94e0e68b3c22c800
RDX: dffffc0000000000 RSI: ffffffff8a8c0300 RDI: ffffffff8adefae0
RBP: ffffc90004797a70 R08: dffffc0000000000 R09: ffffed10171c6af6
R10: ffffed10171c6af6 R11: 1ffff110171c6af5 R12: 00000000ffffffff
R13: 1ffff920008f2f38 R14: 0000000000000a02 R15: 00000000ffffffff
obj_cgroup_uncharge_pages mm/memcontrol.c:3077 [inline]
refill_obj_stock+0x3ed/0x680 mm/memcontrol.c:3350
obj_cgroup_charge+0x3bf/0x610 mm/memcontrol.c:3392
memcg_slab_pre_alloc_hook mm/slab.h:501 [inline]
slab_pre_alloc_hook+0x2e7/0x310 mm/slab.h:715
slab_alloc_node mm/slub.c:3318 [inline]
slab_alloc mm/slub.c:3406 [inline]
__kmem_cache_alloc_lru mm/slub.c:3413 [inline]
kmem_cache_alloc_lru+0x49/0x2e0 mm/slub.c:3429
__d_alloc+0x31/0x700 fs/dcache.c:1774
d_alloc_pseudo+0x19/0x70 fs/dcache.c:1904
alloc_file_pseudo+0xc8/0x1f0 fs/file_table.c:265
sock_alloc_file+0xb3/0x240 net/socket.c:467
sock_map_fd net/socket.c:491 [inline]
__sys_socket+0x12a/0x190 net/socket.c:1679
__do_sys_socket net/socket.c:1684 [inline]
__se_sys_socket net/socket.c:1682 [inline]
__x64_sys_socket+0x76/0x80 net/socket.c:1682
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f237ab8ebe9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f237ba56038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f237adc6090 RCX: 00007f237ab8ebe9
RDX: 0000000000000010 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007f237ac11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f237adc6128 R14: 00007f237adc6090 R15: 00007ffc0bd6be38
</TASK>
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot
Sep 20, 2025, 4:40:26 PMSep 20
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 363a599da6d9 Linux 6.1.153
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=16503c7c580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7eb38bd5021fec61
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/7cf87f25c694/disk-363a599d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ec86135ba3cc/vmlinux-363a599d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/117cec1ae5fa/bzImage-363a599d.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6f9608...@syzkaller.appspotmail.com
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2641 jiffies s: 32657 root: 0x1/.
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:__preempt_count_add kernel/rcu/tree.c:717 [inline]
RIP: 0010:rcu_is_watching+0x2/0xa0 kernel/rcu/tree.c:720
Code: eb 99 e8 01 55 ac 08 48 c7 c7 e0 16 b3 8c 4c 89 f6 e8 72 8c c3 02 e9 53 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 57 <41> 56 53 65 ff 05 fc 60 97 7e e8 7f 69 ac 08 89 c3 83 f8 08 73 60
RSP: 0018:ffffc900000071b0 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff8162f239
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e1f75e8
RBP: ffffc900000072c8 R08: dffffc0000000000 R09: fffffbfff1c3eebe
R10: fffffbfff1c3eebe R11: 1ffffffff1c3eebd R12: 0000000000000000
R13: 1ffff92000000e44 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000555560168500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
Call Trace:
<IRQ>
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0xe8/0x490 kernel/locking/lockdep.c:5633
rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
rcu_read_lock include/linux/rcupdate.h:791 [inline]
__perf_output_begin kernel/events/ring_buffer.c:163 [inline]
perf_output_begin_forward+0xb5/0xa80 kernel/events/ring_buffer.c:272
__perf_event_output kernel/events/core.c:7732 [inline]
perf_event_output_forward+0x179/0x2a0 kernel/events/core.c:7750
RDX: dffffc0000000000 RSI: ffffffff8a8c0500 RDI: ffffffff8adefca0
RBP: ffffc90000007b90 R08: dffffc0000000000 R09: ffffed10171c6afa
R10: ffffed10171c6afa R11: 1ffff110171c6af9 R12: 0000000000000246
__hrtimer_run_queues+0x554/0xd60 kernel/time/hrtimer.c:1811
hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1828
Code: c0 00 00 00 0f 85 6e 01 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c7 d9 3f 08 f7 c3 00 02 00 00 74 9c fb 4d 85 ff <75> 9b eb a1 e8 32 5a 2c 02 85 c0 0f 84 b8 fb ff ff 48 c7 c0 a8 aa
RSP: 0018:ffffc90003817b60 EFLAGS: 00000246
RAX: d9be904124b22b00 RBX: 0000000000000a06 RCX: d9be904124b22b00
RDX: dffffc0000000000 RSI: ffffffff8a8c0500 RDI: ffffffff8adefca0
RBP: ffffc90003817c70 R08: dffffc0000000000 R09: ffffed10171c6afa
R10: ffffed10171c6afa R11: 1ffff110171c6af9 R12: dffffc0000000000
R13: ffff8880b8e36950 R14: ffff8880b8e36910 R15: 0000000000000000
memcg_slab_post_alloc_hook mm/slab.h:537 [inline]
slab_post_alloc_hook+0x32e/0x480 mm/slab.h:745
slab_alloc_node mm/slub.c:3359 [inline]
slab_alloc mm/slub.c:3367 [inline]
__kmem_cache_alloc_lru mm/slub.c:3374 [inline]
kmem_cache_alloc_lru+0x11a/0x2e0 mm/slub.c:3390
RAX: ffffffffffffffda RBX: 00007f817bdd5fa0 RCX: 00007f817bb8ec29
RDX: 0000000000000000 RSI: 0200000000000001 RDI: 0000000000000002
RBP: 00007f817bc11e41 R08: 0000000000000000 R09: 0000000000000000
</TASK>
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
HEAD commit: 363a599da6d9 Linux 6.1.153
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=16503c7c580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7eb38bd5021fec61
dashboard link: https://syzkaller.appspot.com/bug?extid=6f9608a27846cc108b6b
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=132f60e2580000
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/7cf87f25c694/disk-363a599d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ec86135ba3cc/vmlinux-363a599d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/117cec1ae5fa/bzImage-363a599d.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6f9608...@syzkaller.appspotmail.com
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 13270 Comm: syz.0.8131 Not tainted syzkaller #0
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:__preempt_count_add kernel/rcu/tree.c:717 [inline]
RIP: 0010:rcu_is_watching+0x2/0xa0 kernel/rcu/tree.c:720
Code: eb 99 e8 01 55 ac 08 48 c7 c7 e0 16 b3 8c 4c 89 f6 e8 72 8c c3 02 e9 53 ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 57 <41> 56 53 65 ff 05 fc 60 97 7e e8 7f 69 ac 08 89 c3 83 f8 08 73 60
RSP: 0018:ffffc900000071b0 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff8162f239
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e1f75e8
RBP: ffffc900000072c8 R08: dffffc0000000000 R09: fffffbfff1c3eebe
R10: fffffbfff1c3eebe R11: 1ffffffff1c3eebd R12: 0000000000000000
R13: 1ffff92000000e44 R14: 0000000000000000 R15: dffffc0000000000
FS: 0000555560168500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000005c527000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0xe8/0x490 kernel/locking/lockdep.c:5633
rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
rcu_read_lock include/linux/rcupdate.h:791 [inline]
__perf_output_begin kernel/events/ring_buffer.c:163 [inline]
perf_output_begin_forward+0xb5/0xa80 kernel/events/ring_buffer.c:272
__perf_event_output kernel/events/core.c:7732 [inline]
perf_event_output_forward+0x179/0x2a0 kernel/events/core.c:7750
__perf_event_overflow+0x448/0x610 kernel/events/core.c:9496
perf_swevent_overflow kernel/events/core.c:9572 [inline]
perf_swevent_event+0x4ad/0x530 kernel/events/core.c:9610
perf_tp_event+0x335/0xb60 kernel/events/core.c:10029
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10002
perf_trace_preemptirq_template+0x287/0x330 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x84/0x500 kernel/rcu/tree_plugin.h:685
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 2d 97 96 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
perf_swevent_overflow kernel/events/core.c:9572 [inline]
perf_swevent_event+0x4ad/0x530 kernel/events/core.c:9610
perf_tp_event+0x335/0xb60 kernel/events/core.c:10029
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10002
perf_trace_preemptirq_template+0x287/0x330 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x84/0x500 kernel/rcu/tree_plugin.h:685
RSP: 0018:ffffc90000007aa0 EFLAGS: 00000206
RAX: d9be904124b22b00 RBX: 1ffff92000000f5c RCX: d9be904124b22b00
RDX: dffffc0000000000 RSI: ffffffff8a8c0500 RDI: ffffffff8adefca0
RBP: ffffc90000007b90 R08: dffffc0000000000 R09: ffffed10171c6afa
R10: ffffed10171c6afa R11: 1ffff110171c6af9 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
rcu_read_unlock include/linux/rcupdate.h:823 [inline]
ieee80211_iterate_active_interfaces_atomic+0x156/0x170 net/mac80211/util.c:826
mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
__run_hrtimer kernel/time/hrtimer.c:1747 [inline]
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
rcu_read_unlock include/linux/rcupdate.h:823 [inline]
ieee80211_iterate_active_interfaces_atomic+0x156/0x170 net/mac80211/util.c:826
mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
__hrtimer_run_queues+0x554/0xd60 kernel/time/hrtimer.c:1811
hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1828
handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:mod_objcg_state+0x595/0x890 mm/memcontrol.c:3218
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
Code: c0 00 00 00 0f 85 6e 01 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c7 d9 3f 08 f7 c3 00 02 00 00 74 9c fb 4d 85 ff <75> 9b eb a1 e8 32 5a 2c 02 85 c0 0f 84 b8 fb ff ff 48 c7 c0 a8 aa
RSP: 0018:ffffc90003817b60 EFLAGS: 00000246
RAX: d9be904124b22b00 RBX: 0000000000000a06 RCX: d9be904124b22b00
RDX: dffffc0000000000 RSI: ffffffff8a8c0500 RDI: ffffffff8adefca0
RBP: ffffc90003817c70 R08: dffffc0000000000 R09: ffffed10171c6afa
R10: ffffed10171c6afa R11: 1ffff110171c6af9 R12: dffffc0000000000
R13: ffff8880b8e36950 R14: ffff8880b8e36910 R15: 0000000000000000
memcg_slab_post_alloc_hook mm/slab.h:537 [inline]
slab_post_alloc_hook+0x32e/0x480 mm/slab.h:745
slab_alloc_node mm/slub.c:3359 [inline]
slab_alloc mm/slub.c:3367 [inline]
__kmem_cache_alloc_lru mm/slub.c:3374 [inline]
kmem_cache_alloc_lru+0x11a/0x2e0 mm/slub.c:3390
__d_alloc+0x31/0x700 fs/dcache.c:1774
d_alloc_pseudo+0x19/0x70 fs/dcache.c:1904
alloc_file_pseudo+0xc8/0x1f0 fs/file_table.c:265
sock_alloc_file+0xb3/0x240 net/socket.c:467
sock_map_fd net/socket.c:491 [inline]
__sys_socket+0x12a/0x190 net/socket.c:1679
__do_sys_socket net/socket.c:1684 [inline]
__se_sys_socket net/socket.c:1682 [inline]
__x64_sys_socket+0x76/0x80 net/socket.c:1682
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f817bb8ec29
d_alloc_pseudo+0x19/0x70 fs/dcache.c:1904
alloc_file_pseudo+0xc8/0x1f0 fs/file_table.c:265
sock_alloc_file+0xb3/0x240 net/socket.c:467
sock_map_fd net/socket.c:491 [inline]
__sys_socket+0x12a/0x190 net/socket.c:1679
__do_sys_socket net/socket.c:1684 [inline]
__se_sys_socket net/socket.c:1682 [inline]
__x64_sys_socket+0x76/0x80 net/socket.c:1682
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcf435db48 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f817bdd5fa0 RCX: 00007f817bb8ec29
RDX: 0000000000000000 RSI: 0200000000000001 RDI: 0000000000000002
RBP: 00007f817bc11e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f817bdd5fa0 R14: 00007f817bdd5fa0 R15: 0000000000000003
</TASK>
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
syzbot
3:18 AM (19 hours ago) 3:18 AM
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: c2fda4b3f577 Linux 6.1.156
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=119f65e2580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7eb38bd5021fec61
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11c0c5e2580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/784c9646ac1f/disk-c2fda4b3.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/f509a4777d20/vmlinux-c2fda4b3.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ee626a19480c/bzImage-c2fda4b3.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6f9608...@syzkaller.appspotmail.com
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2690 jiffies s: 14849 root: 0x1/.
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:215
Code: 00 00 00 00 00 90 53 48 89 fb e8 17 00 00 00 48 8b 3d 40 9b 9e 0c 48 89 de 5b e9 e7 64 4f 00 00 00 cc cc 00 00 cc 48 8b 04 24 <65> 48 8b 0d 54 a0 81 7e 65 8b 15 55 a0 81 7e 81 e2 00 01 ff 00 74
RSP: 0018:ffffc90000006fd8 EFLAGS: 00000046
RAX: ffffffff81a319c5 RBX: ffffc90000007180 RCX: ffff8880308a8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900000070d0 R08: dffffc0000000000 R09: ffffc90000007120
R10: fffff52000000e2b R11: 1ffff92000000e24 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000007340
FS: 0000555593181500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
__perf_event_output kernel/events/core.c:7730 [inline]
perf_event_output_forward+0x163/0x2a0 kernel/events/core.c:7750
RSP: 0018:ffffc90000007760 EFLAGS: 00000206
RAX: e8d8c6e318d93600 RBX: 1ffff92000000ef4 RCX: e8d8c6e318d93600
RDX: dffffc0000000000 RSI: ffffffff8a8c0500 RDI: ffffffff8adef020
RBP: ffffc90000007860 R08: dffffc0000000000 R09: fffffbfff215c46a
R10: fffffbfff215c46a R11: 1ffffffff215c469 R12: 0000000000000246
addrconf_rs_timer+0x2b8/0x600 net/ipv6/addrconf.c:3979
call_timer_fn+0x1a0/0x670 kernel/time/timer.c:1504
expire_timers kernel/time/timer.c:1549 [inline]
__run_timers+0x525/0x7c0 kernel/time/timer.c:1820
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
Code: 44 24 20 f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 70 bf 01 00 00 00 e8 5f 70 37 f7 e8 9a e6 66 f7 fb bf 01 00 00 00 <e8> df b9 ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900057e7a20 EFLAGS: 00000282
RAX: e8d8c6e318d93600 RBX: 0000000000000000 RCX: e8d8c6e318d93600
RDX: dffffc0000000000 RSI: ffffffff8a8c0500 RDI: 0000000000000001
RBP: ffffc900057e7ad0 R08: dffffc0000000000 R09: ffffed10171c6afa
R10: ffffed10171c6afa R11: 1ffff110171c6af9 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000afcf44
irqentry_exit+0x63/0x70 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__kasan_check_read+0x0/0x10 mm/kasan/shadow.c:31
Code: 41 5c 41 5d 41 5e 41 5f 5d c3 48 c7 c7 31 74 5a 8c eb 0a 48 c7 c7 3c c7 43 8c 48 89 de e8 58 97 3b 08 31 ed eb d7 00 00 cc cc <89> f6 48 8b 0c 24 31 d2 e9 a3 ec ff ff 0f 1f 00 89 f6 48 8b 0c 24
RSP: 0018:ffffc900057e7b98 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e1f67e8
RBP: ffffc900057e7ca8 R08: 0000000000000001 R09: 0000000000000000
R10: ffffed100ace23dc R11: 1ffff1100ace23da R12: 0000000000000000
R13: 1ffff92000afcf80 R14: 0000000000000000 R15: dffffc0000000000
instrument_atomic_read include/linux/instrumented.h:72 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
cpumask_test_cpu include/linux/cpumask.h:444 [inline]
cpu_online include/linux/cpumask.h:1030 [inline]
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0xd9/0x490 kernel/locking/lockdep.c:5633
fs_reclaim_acquire+0x94/0x100 mm/page_alloc.c:4736
might_alloc include/linux/sched/mm.h:271 [inline]
slab_pre_alloc_hook+0x2a/0x310 mm/slab.h:710
slab_alloc_node mm/slub.c:3279 [inline]
kmem_cache_zalloc include/linux/slab.h:689 [inline]
lsm_inode_alloc security/security.c:596 [inline]
security_inode_alloc+0x30/0x110 security/security.c:1040
inode_init_always+0x8f8/0xc90 fs/inode.c:232
alloc_inode fs/inode.c:268 [inline]
new_inode_pseudo+0x91/0x1c0 fs/inode.c:1063
sock_alloc net/socket.c:631 [inline]
__sock_create+0x129/0x940 net/socket.c:1514
sock_create net/socket.c:1606 [inline]
__sys_socket_create net/socket.c:1643 [inline]
__sys_socket+0xc4/0x190 net/socket.c:1671
RAX: ffffffffffffffda RBX: 00007fc3ef9e5fa0 RCX: 00007fc3ef78eec9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007fc3ef811f91 R08: 0000000000000000 R09: 0000000000000000
HEAD commit: c2fda4b3f577 Linux 6.1.156
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=119f65e2580000
kernel config: https://syzkaller.appspot.com/x/.config?x=7eb38bd5021fec61
dashboard link: https://syzkaller.appspot.com/bug?extid=6f9608a27846cc108b6b
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14de3542580000
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11c0c5e2580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/784c9646ac1f/disk-c2fda4b3.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/f509a4777d20/vmlinux-c2fda4b3.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ee626a19480c/bzImage-c2fda4b3.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6f9608...@syzkaller.appspotmail.com
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8736 Comm: syz.0.4054 Not tainted syzkaller #0
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:215
Code: 00 00 00 00 00 90 53 48 89 fb e8 17 00 00 00 48 8b 3d 40 9b 9e 0c 48 89 de 5b e9 e7 64 4f 00 00 00 cc cc 00 00 cc 48 8b 04 24 <65> 48 8b 0d 54 a0 81 7e 65 8b 15 55 a0 81 7e 81 e2 00 01 ff 00 74
RSP: 0018:ffffc90000006fd8 EFLAGS: 00000046
RAX: ffffffff81a319c5 RBX: ffffc90000007180 RCX: ffff8880308a8000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900000070d0 R08: dffffc0000000000 R09: ffffc90000007120
R10: fffff52000000e2b R11: 1ffff92000000e24 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90000007340
FS: 0000555593181500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000021c0 CR3: 0000000024afa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
perf_prepare_sample+0xe05/0x2040 kernel/events/core.c:7633
Call Trace:
<IRQ>
__perf_event_output kernel/events/core.c:7730 [inline]
perf_event_output_forward+0x163/0x2a0 kernel/events/core.c:7750
__perf_event_overflow+0x448/0x610 kernel/events/core.c:9496
perf_swevent_overflow kernel/events/core.c:9572 [inline]
perf_swevent_event+0x4ad/0x530 kernel/events/core.c:9610
perf_tp_event+0x335/0xb60 kernel/events/core.c:10029
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10002
perf_trace_preemptirq_template+0x287/0x330 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x84/0x500 kernel/rcu/tree_plugin.h:685
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 3d 97 96 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
perf_swevent_overflow kernel/events/core.c:9572 [inline]
perf_swevent_event+0x4ad/0x530 kernel/events/core.c:9610
perf_tp_event+0x335/0xb60 kernel/events/core.c:10029
perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10002
perf_trace_preemptirq_template+0x287/0x330 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x84/0x500 kernel/rcu/tree_plugin.h:685
RSP: 0018:ffffc90000007760 EFLAGS: 00000206
RAX: e8d8c6e318d93600 RBX: 1ffff92000000ef4 RCX: e8d8c6e318d93600
RDX: dffffc0000000000 RSI: ffffffff8a8c0500 RDI: ffffffff8adef020
RBP: ffffc90000007860 R08: dffffc0000000000 R09: fffffbfff215c46a
R10: fffffbfff215c46a R11: 1ffffffff215c469 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3b900 R15: 0000000000000001
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
rcu_read_unlock include/linux/rcupdate.h:823 [inline]
ndisc_send_skb+0xda7/0x1510 net/ipv6/ndisc.c:521
__rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
rcu_read_unlock include/linux/rcupdate.h:823 [inline]
addrconf_rs_timer+0x2b8/0x600 net/ipv6/addrconf.c:3979
call_timer_fn+0x1a0/0x670 kernel/time/timer.c:1504
expire_timers kernel/time/timer.c:1549 [inline]
__run_timers+0x525/0x7c0 kernel/time/timer.c:1820
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:preempt_schedule_irq+0xac/0x150 kernel/sched/core.c:6873
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
Code: 44 24 20 f6 44 24 21 02 74 0b 0f 0b 48 f7 03 08 00 00 00 74 70 bf 01 00 00 00 e8 5f 70 37 f7 e8 9a e6 66 f7 fb bf 01 00 00 00 <e8> df b9 ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900057e7a20 EFLAGS: 00000282
RAX: e8d8c6e318d93600 RBX: 0000000000000000 RCX: e8d8c6e318d93600
RDX: dffffc0000000000 RSI: ffffffff8a8c0500 RDI: 0000000000000001
RBP: ffffc900057e7ad0 R08: dffffc0000000000 R09: ffffed10171c6afa
R10: ffffed10171c6afa R11: 1ffff110171c6af9 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000afcf44
irqentry_exit+0x63/0x70 kernel/entry/common.c:439
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__kasan_check_read+0x0/0x10 mm/kasan/shadow.c:31
Code: 41 5c 41 5d 41 5e 41 5f 5d c3 48 c7 c7 31 74 5a 8c eb 0a 48 c7 c7 3c c7 43 8c 48 89 de e8 58 97 3b 08 31 ed eb d7 00 00 cc cc <89> f6 48 8b 0c 24 31 d2 e9 a3 ec ff ff 0f 1f 00 89 f6 48 8b 0c 24
RSP: 0018:ffffc900057e7b98 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e1f67e8
RBP: ffffc900057e7ca8 R08: 0000000000000001 R09: 0000000000000000
R10: ffffed100ace23dc R11: 1ffff1100ace23da R12: 0000000000000000
R13: 1ffff92000afcf80 R14: 0000000000000000 R15: dffffc0000000000
instrument_atomic_read include/linux/instrumented.h:72 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
cpumask_test_cpu include/linux/cpumask.h:444 [inline]
cpu_online include/linux/cpumask.h:1030 [inline]
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0xd9/0x490 kernel/locking/lockdep.c:5633
fs_reclaim_acquire+0x94/0x100 mm/page_alloc.c:4736
might_alloc include/linux/sched/mm.h:271 [inline]
slab_pre_alloc_hook+0x2a/0x310 mm/slab.h:710
slab_alloc_node mm/slub.c:3279 [inline]
slab_alloc mm/slub.c:3367 [inline]
__kmem_cache_alloc_lru mm/slub.c:3374 [inline]
kmem_cache_alloc+0x56/0x2f0 mm/slub.c:3383
__kmem_cache_alloc_lru mm/slub.c:3374 [inline]
kmem_cache_zalloc include/linux/slab.h:689 [inline]
lsm_inode_alloc security/security.c:596 [inline]
security_inode_alloc+0x30/0x110 security/security.c:1040
inode_init_always+0x8f8/0xc90 fs/inode.c:232
alloc_inode fs/inode.c:268 [inline]
new_inode_pseudo+0x91/0x1c0 fs/inode.c:1063
sock_alloc net/socket.c:631 [inline]
__sock_create+0x129/0x940 net/socket.c:1514
sock_create net/socket.c:1606 [inline]
__sys_socket_create net/socket.c:1643 [inline]
__sys_socket+0xc4/0x190 net/socket.c:1671
__do_sys_socket net/socket.c:1684 [inline]
__se_sys_socket net/socket.c:1682 [inline]
__x64_sys_socket+0x76/0x80 net/socket.c:1682
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fc3ef78eec9
__se_sys_socket net/socket.c:1682 [inline]
__x64_sys_socket+0x76/0x80 net/socket.c:1682
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffede6104a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fc3ef9e5fa0 RCX: 00007fc3ef78eec9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007fc3ef811f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc3ef9e5fa0 R14: 00007fc3ef9e5fa0 R15: 0000000000000003
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