BUG: soft lockup in do_sys_open
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syzbot
Dec 18, 2021, 5:34:28 AM12/18/21
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=160ac293b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=ebc9ec4cb9279189117a
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1769c57db00000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ebc9ec...@syzkaller.appspotmail.com
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 'syz-executor.2': attribute type 7 has an invalid length.
netlink: 'syz-executor.0': attribute type 7 has an invalid length.
netlink: 'syz-executor.1': attribute type 7 has an invalid length.
watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.0:22321]
Modules linked in:
irq event stamp: 3242952
hardirqs last enabled at (3242951): [<ffffffff81003ce4>] trace_hardirqs_on_thunk+0x1a/0x1c
hardirqs last disabled at (3242952): [<ffffffff81003d00>] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last enabled at (3237932): [<ffffffff88400678>] __do_softirq+0x678/0x980 kernel/softirq.c:318 kernel/softirq.c:318
softirqs last disabled at (3237819): [<ffffffff813927d5>] invoke_softirq kernel/softirq.c:372 [inline]
softirqs last disabled at (3237819): [<ffffffff813927d5>] invoke_softirq kernel/softirq.c:372 [inline] kernel/softirq.c:412
softirqs last disabled at (3237819): [<ffffffff813927d5>] irq_exit+0x215/0x260 kernel/softirq.c:412 kernel/softirq.c:412
CPU: 0 PID: 22321 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline]
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline] kernel/locking/qspinlock.c:474
RIP: 0010:__pv_queued_spin_lock_slowpath+0x3a6/0xae0 kernel/locking/qspinlock.c:474 kernel/locking/qspinlock.c:474
Code: eb c6 45 01 01 41 bc 00 80 00 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c f3 90 <41> 83 ec 01 0f 84 38 04 00 00 41 0f b6 45 00 38 d8 7f 08 84 c0 0f
RSP: 0018:ffff88807418f5b8 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffff11046a16428
RDX: 0000000000000001 RSI: ffffffff8167a995 RDI: 0000000000000286
RBP: ffff8882350b2140 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000000f2
R13: ffffed1046a16428 R14: 0000000000000001 R15: ffff8880ba02be00
FS: 00007f06dec3b700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5e3fac3fc8 CR3: 000000007d849000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:679 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:53 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:88 [inline]
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:679 [inline] kernel/locking/spinlock_debug.c:113
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:53 [inline] kernel/locking/spinlock_debug.c:113
queued_spin_lock include/asm-generic/qspinlock.h:88 [inline] kernel/locking/spinlock_debug.c:113
do_raw_spin_lock+0x189/0x220 kernel/locking/spinlock_debug.c:113 kernel/locking/spinlock_debug.c:113
spin_lock include/linux/spinlock.h:329 [inline]
ext4_lock_group fs/ext4/ext4.h:3022 [inline]
spin_lock include/linux/spinlock.h:329 [inline] fs/ext4/ialloc.c:945
ext4_lock_group fs/ext4/ext4.h:3022 [inline] fs/ext4/ialloc.c:945
__ext4_new_inode+0x2dee/0x5a20 fs/ext4/ialloc.c:945 fs/ext4/ialloc.c:945
ext4_create+0x29e/0x5f0 fs/ext4/namei.c:2517 fs/ext4/namei.c:2517
lookup_open+0x893/0x1a20 fs/namei.c:3235 fs/namei.c:3235
do_last fs/namei.c:3327 [inline]
do_last fs/namei.c:3327 [inline] fs/namei.c:3537
path_openat+0x1094/0x2df0 fs/namei.c:3537 fs/namei.c:3537
do_filp_open+0x18c/0x3f0 fs/namei.c:3567 fs/namei.c:3567
do_sys_open+0x3b3/0x520 fs/open.c:1085 fs/open.c:1085
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f06df528e99
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f06dec3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f06df63c1d0 RCX: 00007f06df528e99
RDX: 00000000000026e1 RSI: 0000000020000280 RDI: ffffffffffffff9c
RBP: 00007f06df582ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3d8f797f R14: 00007f06dec3b300 R15: 0000000000022000
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 22345 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:native_apic_mem_write+0x8/0x10 arch/x86/include/asm/apic.h:109 arch/x86/include/asm/apic.h:109
Code: 3d cc 17 3d 0b 01 7f 02 5d c3 89 ef 5d e9 f5 fe c9 06 48 c7 c7 00 97 65 8c e8 84 e2 6f 00 eb df 66 90 89 ff 89 b7 00 c0 5f ff <c3> 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb 48
RSP: 0018:ffff8880ba107508 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffffffff89cfb1a0 RCX: 0000000000000020
RDX: 1ffffffff139f636 RSI: 00000000000000f5 RDI: 0000000000000380
RBP: ffff8880ba11e2c0 R08: ffffffff8c665058 R09: 0000000000000000
R10: 0000000000000007 R11: ffffffff8c66505b R12: 00000000000000f5
R13: 0000000000000000 R14: ffff8880ba124cc0 R15: ffff8880ba124d30
FS: 00007f9a9a4a6700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fba339b4718 CR3: 0000000079ff8000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
apic_write arch/x86/include/asm/apic.h:389 [inline]
apic_write arch/x86/include/asm/apic.h:389 [inline] arch/x86/kernel/apic/apic.c:460
lapic_next_event+0x4d/0x80 arch/x86/kernel/apic/apic.c:460 arch/x86/kernel/apic/apic.c:460
clockevents_program_event+0x234/0x350 kernel/time/clockevents.c:344 kernel/time/clockevents.c:344
tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:48 kernel/time/tick-oneshot.c:48
hrtimer_interrupt+0x40a/0x9e0 kernel/time/hrtimer.c:1598 kernel/time/hrtimer.c:1598
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline]
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline] arch/x86/kernel/apic/apic.c:1096
smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096 arch/x86/kernel/apic/apic.c:1096
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 arch/x86/entry/entry_64.S:894
RIP: 0010:__orc_find+0x4a/0xf0 arch/x86/kernel/unwind_orc.c:46 arch/x86/kernel/unwind_orc.c:46
Code: 49 89 fd 0f 87 9a 00 00 00 49 bf 00 00 00 00 00 fc ff df 49 89 fe 48 89 fd eb 0c 48 8d 6b 04 49 89 de 49 39 ec 72 4d 4c 89 e0 <48> 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d
RSP: 0018:ffff8880ba107728 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13
RAX: ffffffff8b3979f8 RBX: ffffffff8b3979e8 RCX: ffffffff81a206e2
RDX: 0000000000000000 RSI: ffffffff8b9a9336 RDI: ffffffff8b3979d8
RBP: ffffffff8b3979ec R08: 0000000000000000 R09: ffffffff8b9a9336
R10: ffff8880ba1078ff R11: 0000000000074071 R12: ffffffff8b3979f8
R13: ffffffff8b3979d8 R14: ffffffff8b3979e8 R15: dffffc0000000000
orc_find arch/x86/kernel/unwind_orc.c:159 [inline]
orc_find arch/x86/kernel/unwind_orc.c:159 [inline] arch/x86/kernel/unwind_orc.c:422
unwind_next_frame+0x339/0x1400 arch/x86/kernel/unwind_orc.c:422 arch/x86/kernel/unwind_orc.c:422
__save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 arch/x86/kernel/stacktrace.c:44
save_stack mm/kasan/kasan.c:448 [inline]
set_track mm/kasan/kasan.c:460 [inline]
save_stack mm/kasan/kasan.c:448 [inline] mm/kasan/kasan.c:553
set_track mm/kasan/kasan.c:460 [inline] mm/kasan/kasan.c:553
kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 mm/kasan/kasan.c:553
__do_kmalloc_node mm/slab.c:3689 [inline]
__do_kmalloc_node mm/slab.c:3689 [inline] mm/slab.c:3703
__kmalloc_node_track_caller+0x4c/0x70 mm/slab.c:3703 mm/slab.c:3703
__kmalloc_reserve net/core/skbuff.c:137 [inline]
__kmalloc_reserve net/core/skbuff.c:137 [inline] net/core/skbuff.c:205
__alloc_skb+0xae/0x560 net/core/skbuff.c:205 net/core/skbuff.c:205
alloc_skb include/linux/skbuff.h:995 [inline]
alloc_skb include/linux/skbuff.h:995 [inline] net/ipv6/ndisc.c:403
ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403 net/ipv6/ndisc.c:403
ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835 net/ipv6/addrconf.c:3835
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 kernel/time/timer.c:1338
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 kernel/time/timer.c:1375
__run_timers kernel/time/timer.c:1696 [inline]
__run_timers kernel/time/timer.c:1696 [inline] kernel/time/timer.c:1709
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
invoke_softirq kernel/softirq.c:372 [inline] kernel/softirq.c:412
irq_exit+0x215/0x260 kernel/softirq.c:412 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
exiting_irq arch/x86/include/asm/apic.h:536 [inline] arch/x86/kernel/apic/apic.c:1098
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:find_inode_bit+0x3bc/0x520 fs/ext4/ialloc.c:725 fs/ext4/ialloc.c:725
Code: 89 f8 31 ff 29 d8 29 d0 89 c3 89 c6 e8 0d f3 85 ff 85 db 79 b7 e8 94 f1 85 ff 4c 89 f7 e8 ec db d3 ff 48 8b 44 24 08 80 38 00 <75> 74 49 8b 45 00 4c 8d 70 01 48 8b 04 24 4d 89 75 00 48 c1 e8 03
RSP: 0018:ffff8880765df648 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffed100ecbbf01 RBX: 00000000ffffffa6 RCX: ffffffff81b07054
RDX: 0000000000000000 RSI: ffffffff81dc93e4 RDI: ffff88808a0e2a38
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed101141c547
R10: ffff88808a0e2a3b R11: 0000000000000000 R12: ffff8880a3dba880
R13: ffff8880765df808 R14: ffff88808a0e29d8 R15: 0000000061bd60ac
__ext4_new_inode+0x2e14/0x5a20 fs/ext4/ialloc.c:951 fs/ext4/ialloc.c:951
ext4_create+0x29e/0x5f0 fs/ext4/namei.c:2517 fs/ext4/namei.c:2517
lookup_open+0x893/0x1a20 fs/namei.c:3235 fs/namei.c:3235
do_last fs/namei.c:3327 [inline]
do_last fs/namei.c:3327 [inline] fs/namei.c:3537
path_openat+0x1094/0x2df0 fs/namei.c:3537 fs/namei.c:3537
do_filp_open+0x18c/0x3f0 fs/namei.c:3567 fs/namei.c:3567
do_sys_open+0x3b3/0x520 fs/open.c:1085 fs/open.c:1085
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f9a9ad93e99
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9a9a4a6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f9a9aea71d0 RCX: 00007f9a9ad93e99
RDX: 00000000000026e1 RSI: 0000000020000280 RDI: ffffffffffffff9c
RBP: 00007f9a9adedff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe76665b0f R14: 00007f9a9a4a6300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: eb c6 jmp 0xffffffc8
2: 45 01 01 add %r8d,(%r9)
5: 41 bc 00 80 00 00 mov $0x8000,%r12d
b: 48 c1 e9 03 shr $0x3,%rcx
f: 83 e3 07 and $0x7,%ebx
12: 41 be 01 00 00 00 mov $0x1,%r14d
18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1f: fc ff df
22: 4c 8d 2c 01 lea (%rcx,%rax,1),%r13
26: eb 0c jmp 0x34
28: f3 90 pause
* 2a: 41 83 ec 01 sub $0x1,%r12d <-- trapping instruction
2e: 0f 84 38 04 00 00 je 0x46c
34: 41 0f b6 45 00 movzbl 0x0(%r13),%eax
39: 38 d8 cmp %bl,%al
3b: 7f 08 jg 0x45
3d: 84 c0 test %al,%al
3f: 0f .byte 0xf
----------------
Code disassembly (best guess):
0: eb c6 jmp 0xffffffc8
2: 45 01 01 add %r8d,(%r9)
5: 41 bc 00 80 00 00 mov $0x8000,%r12d
b: 48 c1 e9 03 shr $0x3,%rcx
f: 83 e3 07 and $0x7,%ebx
12: 41 be 01 00 00 00 mov $0x1,%r14d
18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1f: fc ff df
22: 4c 8d 2c 01 lea (%rcx,%rax,1),%r13
26: eb 0c jmp 0x34
28: f3 90 pause
* 2a: 41 83 ec 01 sub $0x1,%r12d <-- trapping instruction
2e: 0f 84 38 04 00 00 je 0x46c
34: 41 0f b6 45 00 movzbl 0x0(%r13),%eax
39: 38 d8 cmp %bl,%al
3b: 7f 08 jg 0x45
3d: 84 c0 test %al,%al
3f: 0f .byte 0xf
---
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.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
syzbot found the following issue on:
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=160ac293b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=ebc9ec4cb9279189117a
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1769c57db00000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ebc9ec...@syzkaller.appspotmail.com
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'.
netlink: 'syz-executor.2': attribute type 7 has an invalid length.
netlink: 'syz-executor.0': attribute type 7 has an invalid length.
netlink: 'syz-executor.1': attribute type 7 has an invalid length.
watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.0:22321]
Modules linked in:
irq event stamp: 3242952
hardirqs last enabled at (3242951): [<ffffffff81003ce4>] trace_hardirqs_on_thunk+0x1a/0x1c
hardirqs last disabled at (3242952): [<ffffffff81003d00>] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last enabled at (3237932): [<ffffffff88400678>] __do_softirq+0x678/0x980 kernel/softirq.c:318 kernel/softirq.c:318
softirqs last disabled at (3237819): [<ffffffff813927d5>] invoke_softirq kernel/softirq.c:372 [inline]
softirqs last disabled at (3237819): [<ffffffff813927d5>] invoke_softirq kernel/softirq.c:372 [inline] kernel/softirq.c:412
softirqs last disabled at (3237819): [<ffffffff813927d5>] irq_exit+0x215/0x260 kernel/softirq.c:412 kernel/softirq.c:412
CPU: 0 PID: 22321 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline]
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline] kernel/locking/qspinlock.c:474
RIP: 0010:__pv_queued_spin_lock_slowpath+0x3a6/0xae0 kernel/locking/qspinlock.c:474 kernel/locking/qspinlock.c:474
Code: eb c6 45 01 01 41 bc 00 80 00 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c f3 90 <41> 83 ec 01 0f 84 38 04 00 00 41 0f b6 45 00 38 d8 7f 08 84 c0 0f
RSP: 0018:ffff88807418f5b8 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffff11046a16428
RDX: 0000000000000001 RSI: ffffffff8167a995 RDI: 0000000000000286
RBP: ffff8882350b2140 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000000f2
R13: ffffed1046a16428 R14: 0000000000000001 R15: ffff8880ba02be00
FS: 00007f06dec3b700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5e3fac3fc8 CR3: 000000007d849000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:679 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:53 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:88 [inline]
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:679 [inline] kernel/locking/spinlock_debug.c:113
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:53 [inline] kernel/locking/spinlock_debug.c:113
queued_spin_lock include/asm-generic/qspinlock.h:88 [inline] kernel/locking/spinlock_debug.c:113
do_raw_spin_lock+0x189/0x220 kernel/locking/spinlock_debug.c:113 kernel/locking/spinlock_debug.c:113
spin_lock include/linux/spinlock.h:329 [inline]
ext4_lock_group fs/ext4/ext4.h:3022 [inline]
spin_lock include/linux/spinlock.h:329 [inline] fs/ext4/ialloc.c:945
ext4_lock_group fs/ext4/ext4.h:3022 [inline] fs/ext4/ialloc.c:945
__ext4_new_inode+0x2dee/0x5a20 fs/ext4/ialloc.c:945 fs/ext4/ialloc.c:945
ext4_create+0x29e/0x5f0 fs/ext4/namei.c:2517 fs/ext4/namei.c:2517
lookup_open+0x893/0x1a20 fs/namei.c:3235 fs/namei.c:3235
do_last fs/namei.c:3327 [inline]
do_last fs/namei.c:3327 [inline] fs/namei.c:3537
path_openat+0x1094/0x2df0 fs/namei.c:3537 fs/namei.c:3537
do_filp_open+0x18c/0x3f0 fs/namei.c:3567 fs/namei.c:3567
do_sys_open+0x3b3/0x520 fs/open.c:1085 fs/open.c:1085
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f06df528e99
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f06dec3b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f06df63c1d0 RCX: 00007f06df528e99
RDX: 00000000000026e1 RSI: 0000000020000280 RDI: ffffffffffffff9c
RBP: 00007f06df582ff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc3d8f797f R14: 00007f06dec3b300 R15: 0000000000022000
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 22345 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:native_apic_mem_write+0x8/0x10 arch/x86/include/asm/apic.h:109 arch/x86/include/asm/apic.h:109
Code: 3d cc 17 3d 0b 01 7f 02 5d c3 89 ef 5d e9 f5 fe c9 06 48 c7 c7 00 97 65 8c e8 84 e2 6f 00 eb df 66 90 89 ff 89 b7 00 c0 5f ff <c3> 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb 48
RSP: 0018:ffff8880ba107508 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffffffff89cfb1a0 RCX: 0000000000000020
RDX: 1ffffffff139f636 RSI: 00000000000000f5 RDI: 0000000000000380
RBP: ffff8880ba11e2c0 R08: ffffffff8c665058 R09: 0000000000000000
R10: 0000000000000007 R11: ffffffff8c66505b R12: 00000000000000f5
R13: 0000000000000000 R14: ffff8880ba124cc0 R15: ffff8880ba124d30
FS: 00007f9a9a4a6700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fba339b4718 CR3: 0000000079ff8000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
apic_write arch/x86/include/asm/apic.h:389 [inline]
apic_write arch/x86/include/asm/apic.h:389 [inline] arch/x86/kernel/apic/apic.c:460
lapic_next_event+0x4d/0x80 arch/x86/kernel/apic/apic.c:460 arch/x86/kernel/apic/apic.c:460
clockevents_program_event+0x234/0x350 kernel/time/clockevents.c:344 kernel/time/clockevents.c:344
tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:48 kernel/time/tick-oneshot.c:48
hrtimer_interrupt+0x40a/0x9e0 kernel/time/hrtimer.c:1598 kernel/time/hrtimer.c:1598
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline]
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline] arch/x86/kernel/apic/apic.c:1096
smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096 arch/x86/kernel/apic/apic.c:1096
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 arch/x86/entry/entry_64.S:894
RIP: 0010:__orc_find+0x4a/0xf0 arch/x86/kernel/unwind_orc.c:46 arch/x86/kernel/unwind_orc.c:46
Code: 49 89 fd 0f 87 9a 00 00 00 49 bf 00 00 00 00 00 fc ff df 49 89 fe 48 89 fd eb 0c 48 8d 6b 04 49 89 de 49 39 ec 72 4d 4c 89 e0 <48> 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d
RSP: 0018:ffff8880ba107728 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13
RAX: ffffffff8b3979f8 RBX: ffffffff8b3979e8 RCX: ffffffff81a206e2
RDX: 0000000000000000 RSI: ffffffff8b9a9336 RDI: ffffffff8b3979d8
RBP: ffffffff8b3979ec R08: 0000000000000000 R09: ffffffff8b9a9336
R10: ffff8880ba1078ff R11: 0000000000074071 R12: ffffffff8b3979f8
R13: ffffffff8b3979d8 R14: ffffffff8b3979e8 R15: dffffc0000000000
orc_find arch/x86/kernel/unwind_orc.c:159 [inline]
orc_find arch/x86/kernel/unwind_orc.c:159 [inline] arch/x86/kernel/unwind_orc.c:422
unwind_next_frame+0x339/0x1400 arch/x86/kernel/unwind_orc.c:422 arch/x86/kernel/unwind_orc.c:422
__save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 arch/x86/kernel/stacktrace.c:44
save_stack mm/kasan/kasan.c:448 [inline]
set_track mm/kasan/kasan.c:460 [inline]
save_stack mm/kasan/kasan.c:448 [inline] mm/kasan/kasan.c:553
set_track mm/kasan/kasan.c:460 [inline] mm/kasan/kasan.c:553
kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 mm/kasan/kasan.c:553
__do_kmalloc_node mm/slab.c:3689 [inline]
__do_kmalloc_node mm/slab.c:3689 [inline] mm/slab.c:3703
__kmalloc_node_track_caller+0x4c/0x70 mm/slab.c:3703 mm/slab.c:3703
__kmalloc_reserve net/core/skbuff.c:137 [inline]
__kmalloc_reserve net/core/skbuff.c:137 [inline] net/core/skbuff.c:205
__alloc_skb+0xae/0x560 net/core/skbuff.c:205 net/core/skbuff.c:205
alloc_skb include/linux/skbuff.h:995 [inline]
alloc_skb include/linux/skbuff.h:995 [inline] net/ipv6/ndisc.c:403
ndisc_alloc_skb+0x134/0x320 net/ipv6/ndisc.c:403 net/ipv6/ndisc.c:403
ndisc_send_rs+0x33a/0x690 net/ipv6/ndisc.c:669 net/ipv6/ndisc.c:669
addrconf_rs_timer+0x384/0x6a0 net/ipv6/addrconf.c:3835 net/ipv6/addrconf.c:3835
call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 kernel/time/timer.c:1338
expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 kernel/time/timer.c:1375
__run_timers kernel/time/timer.c:1696 [inline]
__run_timers kernel/time/timer.c:1696 [inline] kernel/time/timer.c:1709
run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 kernel/time/timer.c:1709
__do_softirq+0x265/0x980 kernel/softirq.c:292 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
invoke_softirq kernel/softirq.c:372 [inline] kernel/softirq.c:412
irq_exit+0x215/0x260 kernel/softirq.c:412 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
exiting_irq arch/x86/include/asm/apic.h:536 [inline] arch/x86/kernel/apic/apic.c:1098
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:find_inode_bit+0x3bc/0x520 fs/ext4/ialloc.c:725 fs/ext4/ialloc.c:725
Code: 89 f8 31 ff 29 d8 29 d0 89 c3 89 c6 e8 0d f3 85 ff 85 db 79 b7 e8 94 f1 85 ff 4c 89 f7 e8 ec db d3 ff 48 8b 44 24 08 80 38 00 <75> 74 49 8b 45 00 4c 8d 70 01 48 8b 04 24 4d 89 75 00 48 c1 e8 03
RSP: 0018:ffff8880765df648 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffed100ecbbf01 RBX: 00000000ffffffa6 RCX: ffffffff81b07054
RDX: 0000000000000000 RSI: ffffffff81dc93e4 RDI: ffff88808a0e2a38
RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed101141c547
R10: ffff88808a0e2a3b R11: 0000000000000000 R12: ffff8880a3dba880
R13: ffff8880765df808 R14: ffff88808a0e29d8 R15: 0000000061bd60ac
__ext4_new_inode+0x2e14/0x5a20 fs/ext4/ialloc.c:951 fs/ext4/ialloc.c:951
ext4_create+0x29e/0x5f0 fs/ext4/namei.c:2517 fs/ext4/namei.c:2517
lookup_open+0x893/0x1a20 fs/namei.c:3235 fs/namei.c:3235
do_last fs/namei.c:3327 [inline]
do_last fs/namei.c:3327 [inline] fs/namei.c:3537
path_openat+0x1094/0x2df0 fs/namei.c:3537 fs/namei.c:3537
do_filp_open+0x18c/0x3f0 fs/namei.c:3567 fs/namei.c:3567
do_sys_open+0x3b3/0x520 fs/open.c:1085 fs/open.c:1085
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f9a9ad93e99
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9a9a4a6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f9a9aea71d0 RCX: 00007f9a9ad93e99
RDX: 00000000000026e1 RSI: 0000000020000280 RDI: ffffffffffffff9c
RBP: 00007f9a9adedff1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe76665b0f R14: 00007f9a9a4a6300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: eb c6 jmp 0xffffffc8
2: 45 01 01 add %r8d,(%r9)
5: 41 bc 00 80 00 00 mov $0x8000,%r12d
b: 48 c1 e9 03 shr $0x3,%rcx
f: 83 e3 07 and $0x7,%ebx
12: 41 be 01 00 00 00 mov $0x1,%r14d
18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1f: fc ff df
22: 4c 8d 2c 01 lea (%rcx,%rax,1),%r13
26: eb 0c jmp 0x34
28: f3 90 pause
* 2a: 41 83 ec 01 sub $0x1,%r12d <-- trapping instruction
2e: 0f 84 38 04 00 00 je 0x46c
34: 41 0f b6 45 00 movzbl 0x0(%r13),%eax
39: 38 d8 cmp %bl,%al
3b: 7f 08 jg 0x45
3d: 84 c0 test %al,%al
3f: 0f .byte 0xf
----------------
Code disassembly (best guess):
0: eb c6 jmp 0xffffffc8
2: 45 01 01 add %r8d,(%r9)
5: 41 bc 00 80 00 00 mov $0x8000,%r12d
b: 48 c1 e9 03 shr $0x3,%rcx
f: 83 e3 07 and $0x7,%ebx
12: 41 be 01 00 00 00 mov $0x1,%r14d
18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1f: fc ff df
22: 4c 8d 2c 01 lea (%rcx,%rax,1),%r13
26: eb 0c jmp 0x34
28: f3 90 pause
* 2a: 41 83 ec 01 sub $0x1,%r12d <-- trapping instruction
2e: 0f 84 38 04 00 00 je 0x46c
34: 41 0f b6 45 00 movzbl 0x0(%r13),%eax
39: 38 d8 cmp %bl,%al
3b: 7f 08 jg 0x45
3d: 84 c0 test %al,%al
3f: 0f .byte 0xf
---
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.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
syzbot
Jan 10, 2023, 3:41:40 PM1/10/23
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1754fc4a480000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11b955d2480000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/98c0bdb4abb3/disk-3f8a27f9.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ea228ff02669/vmlinux-3f8a27f9.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/03bc5734e441/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ebc9ec...@syzkaller.appspotmail.com
erofs: read_super, device -> /dev/loop0
erofs: options -> noacl,
watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor315:8112]
Modules linked in:
irq event stamp: 6670
hardirqs last enabled at (6669): [<ffffffff81003ce4>] trace_hardirqs_on_thunk+0x1a/0x1c
hardirqs last disabled at (6670): [<ffffffff81003d00>] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last enabled at (1148): [<ffffffff88400678>] __do_softirq+0x678/0x980 kernel/softirq.c:318
softirqs last disabled at (1055): [<ffffffff813927d5>] invoke_softirq kernel/softirq.c:372 [inline]
softirqs last disabled at (1055): [<ffffffff813927d5>] irq_exit+0x215/0x260 kernel/softirq.c:412
CPU: 0 PID: 8112 Comm: syz-executor315 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:vle_get_logical_extent_head drivers/staging/erofs/unzip_vle.c:1543 [inline]
RIP: 0010:z_erofs_map_blocks_iter+0xcac/0x1aa0 drivers/staging/erofs/unzip_vle.c:1666
Code: 18 11 4d 01 e7 e8 64 11 27 fb 44 01 fb 81 e3 ff 0f 00 00 48 03 5c 24 30 48 89 d8 48 89 de 48 c1 e8 03 83 e6 07 42 0f b6 0c 28 <48> 8d 43 01 48 89 c2 48 c1 ea 03 42 0f b6 14 2a 40 38 f1 40 0f 9e
RSP: 0018:ffff8880931af360 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff11012bb0e9a RBX: ffff888095d874d0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
RBP: ffff8880a93745c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffea00025761c0 R15: 0000000000000480
FS: 000055555610d300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
z_erofs_do_read_page+0x670/0x2820 drivers/staging/erofs/unzip_vle.c:644
z_erofs_vle_normalaccess_readpage+0x136/0x460 drivers/staging/erofs/unzip_vle.c:1353
do_read_cache_page+0x533/0x1170 mm/filemap.c:2828
read_mapping_page include/linux/pagemap.h:402 [inline]
find_target_block_classic drivers/staging/erofs/namei.c:112 [inline]
erofs_namei+0x1ab/0x1740 drivers/staging/erofs/namei.c:189
erofs_lookup+0x143/0x500 drivers/staging/erofs/namei.c:232
lookup_open+0x698/0x1a20 fs/namei.c:3214
do_last fs/namei.c:3327 [inline]
path_openat+0x1804/0x2df0 fs/namei.c:3537
do_filp_open+0x18c/0x3f0 fs/namei.c:3567
do_sys_open+0x3b3/0x520 fs/open.c:1085
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f8dbaf491f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe26112da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f8dbaf491f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000200
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007f8dbafb6ec0
R10: 00007ffe26112c70 R11: 0000000000000246 R12: 00007ffe26112dd0
R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000
HEAD commit: 3f8a27f9e27b Linux 4.19.211
git tree: linux-4.19.y
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=ebc9ec4cb9279189117a
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10265c22480000
dashboard link: https://syzkaller.appspot.com/bug?extid=ebc9ec4cb9279189117a
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11b955d2480000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/98c0bdb4abb3/disk-3f8a27f9.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/ea228ff02669/vmlinux-3f8a27f9.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/03bc5734e441/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ebc9ec...@syzkaller.appspotmail.com
erofs: options -> noacl,
watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor315:8112]
Modules linked in:
irq event stamp: 6670
hardirqs last enabled at (6669): [<ffffffff81003ce4>] trace_hardirqs_on_thunk+0x1a/0x1c
hardirqs last disabled at (6670): [<ffffffff81003d00>] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last enabled at (1148): [<ffffffff88400678>] __do_softirq+0x678/0x980 kernel/softirq.c:318
softirqs last disabled at (1055): [<ffffffff813927d5>] invoke_softirq kernel/softirq.c:372 [inline]
softirqs last disabled at (1055): [<ffffffff813927d5>] irq_exit+0x215/0x260 kernel/softirq.c:412
CPU: 0 PID: 8112 Comm: syz-executor315 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:vle_get_logical_extent_head drivers/staging/erofs/unzip_vle.c:1543 [inline]
RIP: 0010:z_erofs_map_blocks_iter+0xcac/0x1aa0 drivers/staging/erofs/unzip_vle.c:1666
Code: 18 11 4d 01 e7 e8 64 11 27 fb 44 01 fb 81 e3 ff 0f 00 00 48 03 5c 24 30 48 89 d8 48 89 de 48 c1 e8 03 83 e6 07 42 0f b6 0c 28 <48> 8d 43 01 48 89 c2 48 c1 ea 03 42 0f b6 14 2a 40 38 f1 40 0f 9e
RSP: 0018:ffff8880931af360 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff11012bb0e9a RBX: ffff888095d874d0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
RBP: ffff8880a93745c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffea00025761c0 R15: 0000000000000480
FS: 000055555610d300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffca76d7fe8 CR3: 00000000a4537000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
erofs_map_blocks_iter+0x6d/0x3b0 drivers/staging/erofs/data.c:168
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
z_erofs_do_read_page+0x670/0x2820 drivers/staging/erofs/unzip_vle.c:644
z_erofs_vle_normalaccess_readpage+0x136/0x460 drivers/staging/erofs/unzip_vle.c:1353
do_read_cache_page+0x533/0x1170 mm/filemap.c:2828
read_mapping_page include/linux/pagemap.h:402 [inline]
find_target_block_classic drivers/staging/erofs/namei.c:112 [inline]
erofs_namei+0x1ab/0x1740 drivers/staging/erofs/namei.c:189
erofs_lookup+0x143/0x500 drivers/staging/erofs/namei.c:232
lookup_open+0x698/0x1a20 fs/namei.c:3214
do_last fs/namei.c:3327 [inline]
path_openat+0x1804/0x2df0 fs/namei.c:3537
do_filp_open+0x18c/0x3f0 fs/namei.c:3567
do_sys_open+0x3b3/0x520 fs/open.c:1085
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f8dbaf491f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe26112da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f8dbaf491f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000200
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007f8dbafb6ec0
R10: 00007ffe26112c70 R11: 0000000000000246 R12: 00007ffe26112dd0
R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000
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