BUG: soft lockup in sys_madvise (2)
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syzbot
Sep 16, 2022, 4:18:36 PM9/16/22
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=13bb8ed5080000
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=f55d6cb2a3ac23784acc
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/98c0bdb4abb3/disk-3f8a27f9.raw.xz
vmlinux: https://storage.googleapis.com/ea228ff02669/vmlinux-3f8a27f9.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+f55d6c...@syzkaller.appspotmail.com
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'.
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
overlayfs: unrecognized mount option "MowVrdir=.:file4" or missing value
watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.3:10157]
Modules linked in:
irq event stamp: 2080700
hardirqs last enabled at (2080699): [<ffffffff81003ce4>] trace_hardirqs_on_thunk+0x1a/0x1c
hardirqs last disabled at (2080700): [<ffffffff81003d00>] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last enabled at (2078534): [<ffffffff88400678>] __do_softirq+0x678/0x980 kernel/softirq.c:318
softirqs last disabled at (2037843): [<ffffffff813927d5>] invoke_softirq kernel/softirq.c:372 [inline]
softirqs last disabled at (2037843): [<ffffffff813927d5>] irq_exit+0x215/0x260 kernel/softirq.c:412
CPU: 1 PID: 10157 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x3a6/0xae0 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:ffff888042cff318 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffff110132647a2
RDX: 0000000000000001 RSI: ffffffff8167a995 RDI: 0000000000000286
RBP: ffff888099323d10 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000060ce
R13: ffffed10132647a2 R14: 0000000000000001 R15: ffff8880ba12be00
FS: 00007f11aadf6700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020356ffc CR3: 0000000050002000 CR4: 00000000003406e0
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]
do_raw_spin_lock+0x189/0x220 kernel/locking/spinlock_debug.c:113
spin_lock include/linux/spinlock.h:329 [inline]
map_pte mm/page_vma_mapped.c:51 [inline]
page_vma_mapped_walk+0x1172/0x27d0 mm/page_vma_mapped.c:254
remove_migration_pte+0x145/0xff0 mm/migrate.c:217
rmap_walk_anon+0x472/0xa80 mm/rmap.c:1842
rmap_walk_locked+0x12a/0x190 mm/rmap.c:1924
remove_migration_ptes+0xbf/0x120 mm/migrate.c:298
remap_page+0xe2/0x180 mm/huge_memory.c:2452
__split_huge_page mm/huge_memory.c:2561 [inline]
split_huge_page_to_list+0x1b20/0x2ce0 mm/huge_memory.c:2796
split_huge_page include/linux/huge_mm.h:146 [inline]
madvise_free_huge_pmd+0x5a1/0xdd0 mm/huge_memory.c:1708
madvise_free_pte_range+0x6c5/0x2250 mm/madvise.c:325
walk_pmd_range mm/pagewalk.c:51 [inline]
walk_pud_range mm/pagewalk.c:109 [inline]
walk_p4d_range mm/pagewalk.c:135 [inline]
walk_pgd_range+0x8fe/0x1150 mm/pagewalk.c:161
__walk_page_range mm/pagewalk.c:254 [inline]
walk_page_range+0x1a5/0x490 mm/pagewalk.c:335
madvise_free_page_range.isra.0+0xae/0xf0 mm/madvise.c:454
madvise_free_single_vma+0x31c/0x4a0 mm/madvise.c:481
madvise_dontneed_free mm/madvise.c:565 [inline]
madvise_vma mm/madvise.c:698 [inline]
__do_sys_madvise mm/madvise.c:873 [inline]
__se_sys_madvise+0x75c/0x1c10 mm/madvise.c:801
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f11ac481409
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f11aadf6168 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f11ac593f80 RCX: 00007f11ac481409
RDX: 0000000000000008 RSI: 0000000000600003 RDI: 0000000020000000
RBP: 00007f11ac4dc367 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffedbd11b2f R14: 00007f11aadf6300 R15: 0000000000022000
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10202 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
RIP: 0010:skb_release_data+0x139/0x920 net/core/skbuff.c:584
Code: fa 66 31 ed be 04 00 00 00 4c 89 e7 e8 40 95 27 fb 81 c5 01 00 01 00 f0 41 0f c1 5e 20 89 de 89 ef e8 9b cc f1 fa 39 dd 74 13 <48> 83 c4 40 5b 5d 41 5c 41 5d 41 5e 41 5f e9 94 cb f1 fa e8 8f cb
RSP: 0018:ffff8880ba007cf0 EFLAGS: 00000286
RAX: 0000000000000007 RBX: 0000000000000000 RCX: 1ffff11015e221a7
RDX: 0000000000000000 RSI: ffff8880af110d40 RDI: 0000000000000286
RBP: ffff888051b69843 R08: 0000000000400000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888051b69780
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888051b69870
FS: 00007f11aadd5700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31923000 CR3: 0000000050002000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
skb_release_all net/core/skbuff.c:640 [inline]
__kfree_skb net/core/skbuff.c:654 [inline]
consume_skb+0x113/0x3d0 net/core/skbuff.c:714
mac80211_hwsim_tx_frame+0x133/0x210 drivers/net/wireless/mac80211_hwsim.c:1557
mac80211_hwsim_beacon_tx+0x3f8/0x680 drivers/net/wireless/mac80211_hwsim.c:1595
__iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614
ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650
mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615
__tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601
tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:pte_flags arch/x86/include/asm/pgtable_types.h:451 [inline]
RIP: 0010:pte_dirty arch/x86/include/asm/pgtable.h:124 [inline]
RIP: 0010:smaps_pte_entry fs/proc/task_mmu.c:547 [inline]
RIP: 0010:smaps_pte_range+0x725/0x1510 fs/proc/task_mmu.c:604
Code: e8 f0 e3 a1 ff 45 31 c9 4c 89 e0 48 85 db 48 b9 00 00 00 00 00 fc ff df 41 0f 95 c1 48 c1 e8 03 80 3c 08 00 0f 85 31 0c 00 00 <48> bb ff 0f 00 00 00 00 f0 ff 49 23 1c 24 31 ff 44 89 4c 24 18 41
RSP: 0018:ffff88804780f790 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff11013b4fe6b RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffff8880af110440 RDI: 0000000000000007
RBP: ffffea0000b61ac0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: ffff88809da7f358
R13: ffff8880a49e4318 R14: ffff88804780fa80 R15: 000000002066b000
walk_pmd_range mm/pagewalk.c:51 [inline]
walk_pud_range mm/pagewalk.c:109 [inline]
walk_p4d_range mm/pagewalk.c:135 [inline]
walk_pgd_range+0x8fe/0x1150 mm/pagewalk.c:161
__walk_page_range mm/pagewalk.c:254 [inline]
walk_page_vma+0x259/0x300 mm/pagewalk.c:357
smap_gather_stats+0x176/0x2d0 fs/proc/task_mmu.c:754
show_smaps_rollup+0x3f4/0x680 fs/proc/task_mmu.c:842
seq_read+0x4e0/0x11c0 fs/seq_file.c:232
do_loop_readv_writev fs/read_write.c:701 [inline]
do_loop_readv_writev fs/read_write.c:688 [inline]
do_iter_read+0x471/0x630 fs/read_write.c:925
vfs_readv+0xe5/0x150 fs/read_write.c:987
do_preadv fs/read_write.c:1071 [inline]
__do_sys_preadv fs/read_write.c:1121 [inline]
__se_sys_preadv fs/read_write.c:1116 [inline]
__x64_sys_preadv+0x22b/0x310 fs/read_write.c:1116
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f11ac481409
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f11aadd5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007f11ac594050 RCX: 00007f11ac481409
RDX: 0000000000000001 RSI: 0000000020000140 RDI: 0000000000000004
RBP: 00007f11ac4dc367 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffedbd11b2f R14: 00007f11aadd5300 R15: 0000000000022000
---
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 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=13bb8ed5080000
kernel config: https://syzkaller.appspot.com/x/.config?x=9b9277b418617afe
dashboard link: https://syzkaller.appspot.com/bug?extid=f55d6cb2a3ac23784acc
compiler: gcc version 10.2.1 20210110 (Debian 10.2.1-6)
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/98c0bdb4abb3/disk-3f8a27f9.raw.xz
vmlinux: https://storage.googleapis.com/ea228ff02669/vmlinux-3f8a27f9.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+f55d6c...@syzkaller.appspotmail.com
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'.
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
overlayfs: unrecognized mount option "MowVrdir=.:file4" or missing value
watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.3:10157]
Modules linked in:
irq event stamp: 2080700
hardirqs last enabled at (2080699): [<ffffffff81003ce4>] trace_hardirqs_on_thunk+0x1a/0x1c
hardirqs last disabled at (2080700): [<ffffffff81003d00>] trace_hardirqs_off_thunk+0x1a/0x1c
softirqs last enabled at (2078534): [<ffffffff88400678>] __do_softirq+0x678/0x980 kernel/softirq.c:318
softirqs last disabled at (2037843): [<ffffffff813927d5>] invoke_softirq kernel/softirq.c:372 [inline]
softirqs last disabled at (2037843): [<ffffffff813927d5>] irq_exit+0x215/0x260 kernel/softirq.c:412
CPU: 1 PID: 10157 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0x3a6/0xae0 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:ffff888042cff318 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffff110132647a2
RDX: 0000000000000001 RSI: ffffffff8167a995 RDI: 0000000000000286
RBP: ffff888099323d10 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000060ce
R13: ffffed10132647a2 R14: 0000000000000001 R15: ffff8880ba12be00
FS: 00007f11aadf6700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020356ffc CR3: 0000000050002000 CR4: 00000000003406e0
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]
do_raw_spin_lock+0x189/0x220 kernel/locking/spinlock_debug.c:113
spin_lock include/linux/spinlock.h:329 [inline]
map_pte mm/page_vma_mapped.c:51 [inline]
page_vma_mapped_walk+0x1172/0x27d0 mm/page_vma_mapped.c:254
remove_migration_pte+0x145/0xff0 mm/migrate.c:217
rmap_walk_anon+0x472/0xa80 mm/rmap.c:1842
rmap_walk_locked+0x12a/0x190 mm/rmap.c:1924
remove_migration_ptes+0xbf/0x120 mm/migrate.c:298
remap_page+0xe2/0x180 mm/huge_memory.c:2452
__split_huge_page mm/huge_memory.c:2561 [inline]
split_huge_page_to_list+0x1b20/0x2ce0 mm/huge_memory.c:2796
split_huge_page include/linux/huge_mm.h:146 [inline]
madvise_free_huge_pmd+0x5a1/0xdd0 mm/huge_memory.c:1708
madvise_free_pte_range+0x6c5/0x2250 mm/madvise.c:325
walk_pmd_range mm/pagewalk.c:51 [inline]
walk_pud_range mm/pagewalk.c:109 [inline]
walk_p4d_range mm/pagewalk.c:135 [inline]
walk_pgd_range+0x8fe/0x1150 mm/pagewalk.c:161
__walk_page_range mm/pagewalk.c:254 [inline]
walk_page_range+0x1a5/0x490 mm/pagewalk.c:335
madvise_free_page_range.isra.0+0xae/0xf0 mm/madvise.c:454
madvise_free_single_vma+0x31c/0x4a0 mm/madvise.c:481
madvise_dontneed_free mm/madvise.c:565 [inline]
madvise_vma mm/madvise.c:698 [inline]
__do_sys_madvise mm/madvise.c:873 [inline]
__se_sys_madvise+0x75c/0x1c10 mm/madvise.c:801
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f11ac481409
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f11aadf6168 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f11ac593f80 RCX: 00007f11ac481409
RDX: 0000000000000008 RSI: 0000000000600003 RDI: 0000000020000000
RBP: 00007f11ac4dc367 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffedbd11b2f R14: 00007f11aadf6300 R15: 0000000000022000
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10202 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
RIP: 0010:skb_release_data+0x139/0x920 net/core/skbuff.c:584
Code: fa 66 31 ed be 04 00 00 00 4c 89 e7 e8 40 95 27 fb 81 c5 01 00 01 00 f0 41 0f c1 5e 20 89 de 89 ef e8 9b cc f1 fa 39 dd 74 13 <48> 83 c4 40 5b 5d 41 5c 41 5d 41 5e 41 5f e9 94 cb f1 fa e8 8f cb
RSP: 0018:ffff8880ba007cf0 EFLAGS: 00000286
RAX: 0000000000000007 RBX: 0000000000000000 RCX: 1ffff11015e221a7
RDX: 0000000000000000 RSI: ffff8880af110d40 RDI: 0000000000000286
RBP: ffff888051b69843 R08: 0000000000400000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888051b69780
R13: 0000000000000000 R14: 0000000000000000 R15: ffff888051b69870
FS: 00007f11aadd5700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31923000 CR3: 0000000050002000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
skb_release_all net/core/skbuff.c:640 [inline]
__kfree_skb net/core/skbuff.c:654 [inline]
consume_skb+0x113/0x3d0 net/core/skbuff.c:714
mac80211_hwsim_tx_frame+0x133/0x210 drivers/net/wireless/mac80211_hwsim.c:1557
mac80211_hwsim_beacon_tx+0x3f8/0x680 drivers/net/wireless/mac80211_hwsim.c:1595
__iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614
ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650
mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615
__tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601
tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:pte_flags arch/x86/include/asm/pgtable_types.h:451 [inline]
RIP: 0010:pte_dirty arch/x86/include/asm/pgtable.h:124 [inline]
RIP: 0010:smaps_pte_entry fs/proc/task_mmu.c:547 [inline]
RIP: 0010:smaps_pte_range+0x725/0x1510 fs/proc/task_mmu.c:604
Code: e8 f0 e3 a1 ff 45 31 c9 4c 89 e0 48 85 db 48 b9 00 00 00 00 00 fc ff df 41 0f 95 c1 48 c1 e8 03 80 3c 08 00 0f 85 31 0c 00 00 <48> bb ff 0f 00 00 00 00 f0 ff 49 23 1c 24 31 ff 44 89 4c 24 18 41
RSP: 0018:ffff88804780f790 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff11013b4fe6b RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffff8880af110440 RDI: 0000000000000007
RBP: ffffea0000b61ac0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: ffff88809da7f358
R13: ffff8880a49e4318 R14: ffff88804780fa80 R15: 000000002066b000
walk_pmd_range mm/pagewalk.c:51 [inline]
walk_pud_range mm/pagewalk.c:109 [inline]
walk_p4d_range mm/pagewalk.c:135 [inline]
walk_pgd_range+0x8fe/0x1150 mm/pagewalk.c:161
__walk_page_range mm/pagewalk.c:254 [inline]
walk_page_vma+0x259/0x300 mm/pagewalk.c:357
smap_gather_stats+0x176/0x2d0 fs/proc/task_mmu.c:754
show_smaps_rollup+0x3f4/0x680 fs/proc/task_mmu.c:842
seq_read+0x4e0/0x11c0 fs/seq_file.c:232
do_loop_readv_writev fs/read_write.c:701 [inline]
do_loop_readv_writev fs/read_write.c:688 [inline]
do_iter_read+0x471/0x630 fs/read_write.c:925
vfs_readv+0xe5/0x150 fs/read_write.c:987
do_preadv fs/read_write.c:1071 [inline]
__do_sys_preadv fs/read_write.c:1121 [inline]
__se_sys_preadv fs/read_write.c:1116 [inline]
__x64_sys_preadv+0x22b/0x310 fs/read_write.c:1116
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f11ac481409
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f11aadd5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000127
RAX: ffffffffffffffda RBX: 00007f11ac594050 RCX: 00007f11ac481409
RDX: 0000000000000001 RSI: 0000000020000140 RDI: 0000000000000004
RBP: 00007f11ac4dc367 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffedbd11b2f R14: 00007f11aadd5300 R15: 0000000000022000
---
This report is generated by a bot. It may contain errors.
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syzbot
Jan 14, 2023, 3:18:31 PM1/14/23
to syzkaller...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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