ci starts bisection 2024-12-05 00:37:20.44715617 +0000 UTC m=+97.784649567
bisecting fixing commit since 87d6aab2389e5ce0197d8257d5f8ee965a67c4cd
building syzkaller on 402f1df054ddb07ed5bb299d08c781354eb06607
ensuring issue is reproducible on original commit 87d6aab2389e5ce0197d8257d5f8ee965a67c4cd
testing commit 87d6aab2389e5ce0197d8257d5f8ee965a67c4cd gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 63245aed77a742961d5c84fc5ad55b1a779b7b71374f0dbc86f8c2c6ab1f0c14
run #0: crashed: INFO: task hung in hugetlb_fault
run #1: crashed: INFO: task hung in hugetlb_fault
run #2: crashed: INFO: task hung in hugetlb_fault
run #3: crashed: INFO: task hung in remove_inode_hugepages
run #4: crashed: INFO: task hung in hugetlb_wp
run #5: crashed: INFO: task hung in hugetlb_fault
run #6: crashed: INFO: task hung in hugetlb_fault
run #7: crashed: INFO: task hung in hugetlb_fault
run #8: crashed: INFO: task hung in hugetlb_fault
run #9: crashed: INFO: task hung in hugetlb_fault
run #10: crashed: INFO: task hung in hugetlb_fault
run #11: crashed: INFO: task hung in hugetlb_wp
run #12: crashed: INFO: task hung in hugetlb_wp
run #13: crashed: INFO: task hung in remove_inode_hugepages
run #14: crashed: INFO: task hung in hugetlb_fault
run #15: crashed: INFO: task hung in hugetlb_fault
run #16: crashed: INFO: task hung in hugetlb_fault
run #17: crashed: INFO: task hung in hugetlb_fault
run #18: crashed: INFO: task hung in hugetlb_fault
run #19: crashed: INFO: task hung in hugetlb_fault
representative crash: INFO: task hung in hugetlb_fault, types: [HANG]
check whether we can drop unnecessary instrumentation
disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed
testing commit 87d6aab2389e5ce0197d8257d5f8ee965a67c4cd gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 88b619d61e4612b6b9e6ded62022ac97f3a421eb13a2cd0a814ef4d296b39771
run #0: crashed: INFO: task hung in hugetlb_fault
run #1: crashed: INFO: task hung in hugetlb_fault
run #2: crashed: INFO: task hung in hugetlb_fault
run #3: crashed: INFO: task hung in hugetlb_fault
run #4: crashed: INFO: task hung in remove_inode_hugepages
run #5: crashed: INFO: task hung in hugetlb_fault
run #6: crashed: INFO: task hung in hugetlb_fault
run #7: crashed: INFO: task hung in hugetlb_fault
run #8: crashed: INFO: task hung in hugetlb_fault
run #9: crashed: INFO: task hung in hugetlb_fault
representative crash: INFO: task hung in hugetlb_fault, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
kconfig minimization: base=4046 full=8192 leaves diff=2108
split chunks (needed=false): <2108>
split chunk #0 of len 2108 into 5 parts
testing without sub-chunk 1/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 87d6aab2389e5ce0197d8257d5f8ee965a67c4cd gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b1add74ebe72a14256bb7dd49a978bba81d40b47c76b00cae8d21a53e695c258
run #0: crashed: INFO: task hung in hugetlb_fault
run #1: crashed: INFO: task hung in hugetlb_fault
run #2: crashed: INFO: task hung in hugetlb_fault
run #3: crashed: INFO: task hung in hugetlb_fault
run #4: crashed: INFO: task hung in hugetlb_fault
run #5: crashed: INFO: task hung in hugetlb_wp
run #6: crashed: INFO: task hung in hugetlb_fault
run #7: crashed: INFO: task hung in hugetlb_fault
run #8: crashed: INFO: task hung in hugetlb_fault
run #9: crashed: INFO: task hung in hugetlb_fault
representative crash: INFO: task hung in hugetlb_fault, types: [HANG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 87d6aab2389e5ce0197d8257d5f8ee965a67c4cd gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 3a94091114a5f3bb5c72ec6ceaf29205a1fee90f5ae25cd4bb49c48a5d31045f
all runs: crashed: INFO: task hung in hugetlb_fault
representative crash: INFO: task hung in hugetlb_fault, types: [HANG]
the chunk can be dropped
testing without sub-chunk 3/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 87d6aab2389e5ce0197d8257d5f8ee965a67c4cd gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 5eedb414c76e8e8d3e2adbe2d286a9fc66e171b90bfed4c8a30cff16688c7038
run #0: crashed: INFO: task hung in hugetlb_fault
run #1: crashed: INFO: task hung in hugetlb_fault
run #2: crashed: INFO: task hung in hugetlb_fault
run #3: crashed: INFO: task hung in hugetlb_fault
run #4: crashed: INFO: task hung in hugetlb_fault
run #5: crashed: INFO: task hung in hugetlb_fault
run #6: crashed: INFO: task hung in hugetlb_fault
run #7: crashed: INFO: task hung in hugetlb_fault
run #8: crashed: INFO: task hung in hugetlb_wp
run #9: crashed: INFO: task hung in hugetlbfs_fallocate
representative crash: INFO: task hung in hugetlb_fault, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing commit 87d6aab2389e5ce0197d8257d5f8ee965a67c4cd gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 4511e3e14e02e0890653aa39c3526e5a73c4f961fb9a7b30974d24573057c7d7
run #0: crashed: INFO: task hung in hugetlb_fault
run #1: crashed: INFO: task hung in hugetlb_fault
run #2: crashed: INFO: task hung in hugetlb_fault
run #3: crashed: INFO: task hung in hugetlb_fault
run #4: crashed: INFO: task hung in hugetlb_fault
run #5: crashed: INFO: task hung in remove_inode_hugepages
run #6: crashed: INFO: task hung in hugetlb_fault
run #7: crashed: INFO: task hung in hugetlb_fault
run #8: crashed: INFO: task hung in hugetlb_fault
run #9: crashed: INFO: task hung in hugetlb_fault
representative crash: INFO: task hung in hugetlb_fault, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed
testing commit 87d6aab2389e5ce0197d8257d5f8ee965a67c4cd gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: c4f9e79c0a2047d3c0afe000c0d367ffd03ab6d8d182918e3439fdf373379e87
all runs: crashed: INFO: task hung in hugetlb_fault
representative crash: INFO: task hung in hugetlb_fault, types: [HANG]
the chunk can be dropped
disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed
testing current HEAD feffde684ac29a3b7aec82d2df850fbdbdee55e4
testing commit feffde684ac29a3b7aec82d2df850fbdbdee55e4 gcc
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 601e67cdf2444fd6ab3723c142ada3e35d9075b461e98049a48ae911dd556b9b
run #0: crashed: INFO: task hung in hugetlb_fault
run #1: crashed: INFO: task hung in hugetlb_fault
run #2: crashed: INFO: task hung in hugetlb_fault
run #3: crashed: INFO: task hung in hugetlb_fault
run #4: crashed: INFO: task hung in hugetlb_wp
run #5: crashed: INFO: task hung in hugetlb_fault
run #6: crashed: INFO: task hung in hugetlb_fault
run #7: crashed: INFO: task hung in hugetlb_fault
run #8: crashed: INFO: task hung in hugetlb_fault
run #9: crashed: INFO: task hung in hugetlb_fault
representative crash: INFO: task hung in hugetlb_fault, types: [HANG]
crash still not fixed/happens on the oldest tested release
revisions tested: 8, total time: 2h33m15.852845946s (build: 56m59.849149758s, test: 1h1m0.062436182s)
crash still not fixed or there were kernel test errors
commit msg: Merge tag 'for-6.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
crash: INFO: task hung in hugetlb_fault
INFO: task syz.2.116:4686 blocked for more than 143 seconds.
Not tainted 6.13.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.116 state:D stack:13288 pid:4686 tgid:4686 ppid:1915 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x4c4/0xac0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x25/0x110 kernel/sched/core.c:6848
io_schedule+0x41/0x60 kernel/sched/core.c:7681
folio_wait_bit_common+0x136/0x380 mm/filemap.c:1308
__folio_lock mm/filemap.c:1646 [inline]
folio_lock include/linux/pagemap.h:1151 [inline]
folio_lock include/linux/pagemap.h:1147 [inline]
__filemap_get_folio+0x196/0x2f0 mm/filemap.c:1899
filemap_lock_folio include/linux/pagemap.h:788 [inline]
filemap_lock_hugetlb_folio include/linux/hugetlb.h:789 [inline]
hugetlb_fault+0x7e6/0xc10 mm/hugetlb.c:6417
handle_mm_fault+0x351/0x360 mm/memory.c:6110
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x256/0x6e0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f503a767208
RSP: 002b:00007ffe0561d258 EFLAGS: 00010246
RAX: 0000000020000640 RBX: 0000000000000004 RCX: 006b6e696c766564
RDX: 0000000000000008 RSI: 006b6e696c766564 RDI: 0000000020000640
RBP: 00007f503a957a80 R08: 00007f503a61a000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 000000000000fac1
R13: 00007ffe0561d360 R14: 0000000000000032 R15: fffffffffffffffe
INFO: task syz.2.116:4687 blocked for more than 143 seconds.
Not tainted 6.13.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.116 state:D stack:14072 pid:4687 tgid:4686 ppid:1915 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x4c4/0xac0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x25/0x110 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x573/0xa80 kernel/locking/mutex.c:735
hugetlb_wp+0x6ff/0xc90 mm/hugetlb.c:5901
hugetlb_fault+0xa9e/0xc10 mm/hugetlb.c:6465
handle_mm_fault+0x351/0x360 mm/memory.c:6110
do_user_addr_fault arch/x86/mm/fault.c:1389 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x161/0x6e0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:rep_movs_alternative+0x33/0x70 arch/x86/lib/copy_user_64.S:58
Code: 40 83 f9 08 73 21 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 48 8b 06 <48> 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb
RSP: 0018:ffffc900020afde0 EFLAGS: 00050246
RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000008
RDX: 0000000020031db8 RSI: ffffc900020afe10 RDI: 0000000020031db0
RBP: 0000000020031db0 R08: 0000000000080000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffc900020afe10
R13: 0000000000018ff8 R14: 0000000020019680 R15: 0000000000000000
copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline]
_inline_copy_to_user include/linux/uaccess.h:197 [inline]
_copy_to_user+0x56/0x70 lib/usercopy.c:26
copy_to_user include/linux/uaccess.h:225 [inline]
msr_read+0x68/0xe0 arch/x86/kernel/msr.c:69
vfs_read+0xe0/0x370 fs/read_write.c:563
ksys_read+0x6f/0xf0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x6d/0x170 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f503a79dff9
RSP: 002b:00007f503a219038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f503a955f80 RCX: 00007f503a79dff9
RDX: 0000000000018ff8 RSI: 0000000020019680 RDI: 0000000000000003
RBP: 00007f503a810296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f503a955f80 R15: 00007ffe0561d0f8
INFO: task syz.1.124:4731 blocked for more than 143 seconds.
Not tainted 6.13.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.124 state:D stack:13352 pid:4731 tgid:4725 ppid:2412 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x4c4/0xac0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x25/0x110 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x573/0xa80 kernel/locking/mutex.c:735
hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
vfs_fallocate+0x121/0x3b0 fs/open.c:327
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:356 [inline]
__se_sys_fallocate fs/open.c:354 [inline]
__x64_sys_fallocate+0x3e/0x80 fs/open.c:354
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x6d/0x170 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fea5742dff9
RSP: 002b:00007fea56e88038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007fea575e6058 RCX: 00007fea5742dff9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007fea574a0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000400 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fea575e6058 R15: 00007fffb2a24538
INFO: task syz.4.155:4868 blocked for more than 143 seconds.
Not tainted 6.13.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.155 state:D stack:14120 pid:4868 tgid:4866 ppid:2418 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x4c4/0xac0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x25/0x110 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x573/0xa80 kernel/locking/mutex.c:735
hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
vfs_fallocate+0x121/0x3b0 fs/open.c:327
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:356 [inline]
__se_sys_fallocate fs/open.c:354 [inline]
__x64_sys_fallocate+0x3e/0x80 fs/open.c:354
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x6d/0x170 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f04188adff9
RSP: 002b:00007f041832f038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f0418a65f80 RCX: 00007f04188adff9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f0418920296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000400 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0418a65f80 R15: 00007ffee0c8b558
INFO: task syz.0.385:5831 blocked for more than 144 seconds.
Not tainted 6.13.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.385 state:D stack:13952 pid:5831 tgid:5831 ppid:2406 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x4c4/0xac0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x25/0x110 kernel/sched/core.c:6848
io_schedule+0x41/0x60 kernel/sched/core.c:7681
folio_wait_bit_common+0x136/0x380 mm/filemap.c:1308
__folio_lock mm/filemap.c:1646 [inline]
folio_lock include/linux/pagemap.h:1151 [inline]
folio_lock include/linux/pagemap.h:1147 [inline]
__filemap_get_folio+0x196/0x2f0 mm/filemap.c:1899
filemap_lock_folio include/linux/pagemap.h:788 [inline]
filemap_lock_hugetlb_folio include/linux/hugetlb.h:789 [inline]
hugetlb_fault+0x7e6/0xc10 mm/hugetlb.c:6417
handle_mm_fault+0x351/0x360 mm/memory.c:6110
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x256/0x6e0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f3ef1b47208
RSP: 002b:00007ffc4b66a518 EFLAGS: 00010246
RAX: 0000000020000640 RBX: 0000000000000004 RCX: 006b6e696c766564
RDX: 0000000000000008 RSI: 006b6e696c766564 RDI: 0000000020000640
RBP: 00007f3ef1d37a80 R08: 00007f3ef1a00000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 0000000000011b02
R13: 00007ffc4b66a620 R14: 0000000000000032 R15: fffffffffffffffe
INFO: task syz.0.385:5832 blocked for more than 144 seconds.
Not tainted 6.13.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.385 state:D stack:13888 pid:5832 tgid:5831 ppid:2406 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x4c4/0xac0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x25/0x110 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
__mutex_lock_common kernel/locking/mutex.c:665 [inline]
__mutex_lock+0x573/0xa80 kernel/locking/mutex.c:735
hugetlb_wp+0x6ff/0xc90 mm/hugetlb.c:5901
hugetlb_fault+0xa9e/0xc10 mm/hugetlb.c:6465
handle_mm_fault+0x351/0x360 mm/memory.c:6110
do_user_addr_fault arch/x86/mm/fault.c:1389 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x161/0x6e0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:rep_movs_alternative+0x33/0x70 arch/x86/lib/copy_user_64.S:58
Code: 40 83 f9 08 73 21 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 48 8b 06 <48> 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 df 83 f9 08 73 e8 eb
RSP: 0018:ffffc90003147de0 EFLAGS: 00050246
RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000008
RDX: 0000000020020410 RSI: ffffc90003147e10 RDI: 0000000020020408
RBP: 0000000020020408 R08: 0000000000080000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffc90003147e10
R13: 0000000000018ff8 R14: 0000000020019680 R15: 0000000000000000
copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline]
_inline_copy_to_user include/linux/uaccess.h:197 [inline]
_copy_to_user+0x56/0x70 lib/usercopy.c:26
copy_to_user include/linux/uaccess.h:225 [inline]
msr_read+0x68/0xe0 arch/x86/kernel/msr.c:69
vfs_read+0xe0/0x370 fs/read_write.c:563
ksys_read+0x6f/0xf0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x6d/0x170 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3ef1b7dff9
RSP: 002b:00007f3ef15ff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f3ef1d35f80 RCX: 00007f3ef1b7dff9
RDX: 0000000000018ff8 RSI: 0000000020019680 RDI: 0000000000000003
RBP: 00007f3ef1bf0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3ef1d35f80 R15: 00007ffc4b66a3b8
Showing all locks held in the system:
2 locks held by kworker/u8:0/11:
#0: ffff888100078948 ((wq_completion)events_unbound){....}-{0:0}, at: process_one_work+0x43e/0x6b0 kernel/workqueue.c:3204
#1: ffffc90000063e58 ((work_completion)(&sub_info->work)){....}-{0:0}, at: process_one_work+0x1ec/0x6b0 kernel/workqueue.c:3205
1 lock held by khungtaskd/30:
#0: ffffffff8277d4c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8277d4c0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8277d4c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x36/0x120 kernel/locking/lockdep.c:6744
2 locks held by getty/840:
#0: ffff8881032c68a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x23/0x60 drivers/tty/tty_ldisc.c:243
#1: ffffc90001c8f2f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x54b/0x6a0 drivers/tty/n_tty.c:2211
3 locks held by syz.2.116/4686:
#0: ffff88810faebce8 (&vma->vm_lock->lock){....}-{3:3}, at: vma_start_read include/linux/mm.h:716 [inline]
#0: ffff88810faebce8 (&vma->vm_lock->lock){....}-{3:3}, at: lock_vma_under_rcu+0x86/0x1d0 mm/memory.c:6278
#1: ffff888101ac40f8 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlb_fault+0xc2/0xc10 mm/hugetlb.c:6333
#2: ffff888108f160e8 (&resv_map->rw_sema){....}-{3:3}, at: hugetlb_fault+0xca/0xc10 mm/hugetlb.c:6340
2 locks held by syz.2.116/4687:
#0: ffff8881082ab7e0 (&mm->mmap_lock){....}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:163 [inline]
#0: ffff8881082ab7e0 (&mm->mmap_lock){....}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:6149 [inline]
#0: ffff8881082ab7e0 (&mm->mmap_lock){....}-{3:3}, at: lock_mm_and_find_vma+0x26/0x280 mm/memory.c:6209
#1: ffff888101ac40f8 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlb_wp+0x6ff/0xc90 mm/hugetlb.c:5901
3 locks held by syz.1.124/4731:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff8881022ad7c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff8881022ad7c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac40f8 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.4.155/4868:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff8881022ac5c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff8881022ac5c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac40f8 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.0.385/5831:
#0: ffff88810fad4238 (&vma->vm_lock->lock){....}-{3:3}, at: vma_start_read include/linux/mm.h:716 [inline]
#0: ffff88810fad4238 (&vma->vm_lock->lock){....}-{3:3}, at: lock_vma_under_rcu+0x86/0x1d0 mm/memory.c:6278
#1: ffff888101ac4728 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlb_fault+0xc2/0xc10 mm/hugetlb.c:6333
#2: ffff888108f118e8 (&resv_map->rw_sema){....}-{3:3}, at: hugetlb_fault+0xca/0xc10 mm/hugetlb.c:6340
2 locks held by syz.0.385/5832:
#0: ffff888102fb13e0 (&mm->mmap_lock){....}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:163 [inline]
#0: ffff888102fb13e0 (&mm->mmap_lock){....}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:6149 [inline]
#0: ffff888102fb13e0 (&mm->mmap_lock){....}-{3:3}, at: lock_mm_and_find_vma+0x26/0x280 mm/memory.c:6209
#1: ffff888101ac4728 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlb_wp+0x6ff/0xc90 mm/hugetlb.c:5901
3 locks held by syz.4.560/7935:
#0: ffff88810eaf56f8 (&vma->vm_lock->lock){....}-{3:3}, at: vma_start_read include/linux/mm.h:716 [inline]
#0: ffff88810eaf56f8 (&vma->vm_lock->lock){....}-{3:3}, at: lock_vma_under_rcu+0x86/0x1d0 mm/memory.c:6278
#1: ffff888101ac4068 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlb_fault+0xc2/0xc10 mm/hugetlb.c:6333
#2: ffff888108f094e8 (&resv_map->rw_sema){....}-{3:3}, at: hugetlb_fault+0xca/0xc10 mm/hugetlb.c:6340
2 locks held by syz.4.560/7936:
#0: ffff8881073740e0 (&mm->mmap_lock){....}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:163 [inline]
#0: ffff8881073740e0 (&mm->mmap_lock){....}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:6149 [inline]
#0: ffff8881073740e0 (&mm->mmap_lock){....}-{3:3}, at: lock_mm_and_find_vma+0x26/0x280 mm/memory.c:6209
#1: ffff888101ac4068 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlb_wp+0x6ff/0xc90 mm/hugetlb.c:5901
2 locks held by syz.1.565/7956:
#0: ffff8881073737e0 (&mm->mmap_lock){....}-{3:3}, at: mmap_read_lock_killable include/linux/mmap_lock.h:153 [inline]
#0: ffff8881073737e0 (&mm->mmap_lock){....}-{3:3}, at: get_mmap_lock_carefully mm/memory.c:6158 [inline]
#0: ffff8881073737e0 (&mm->mmap_lock){....}-{3:3}, at: lock_mm_and_find_vma+0x98/0x280 mm/memory.c:6209
#1: ffff888101ac4068 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlb_fault+0xc2/0xc10 mm/hugetlb.c:6333
3 locks held by syz.1.565/7960:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff8881022aee48 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff8881022aee48 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4068 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.3.575/7995:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff8881022af2c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff8881022af2c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4068 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.2.730/9071:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810cf20a48 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810cf20a48 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac40f8 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
2 locks held by syz.0.903/10678:
#0: ffff88810d74a6f8 (&vma->vm_lock->lock){....}-{3:3}, at: vma_start_read include/linux/mm.h:716 [inline]
#0: ffff88810d74a6f8 (&vma->vm_lock->lock){....}-{3:3}, at: lock_vma_under_rcu+0x86/0x1d0 mm/memory.c:6278
#1: ffff888101ac4728 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlb_fault+0xc2/0xc10 mm/hugetlb.c:6333
3 locks held by syz.0.903/10706:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810cf23bc8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810cf23bc8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4728 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.4.1195/12700:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810cf2a9c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810cf2a9c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4728 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.3.1197/12694:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810cf2ae48 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810cf2ae48 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac40f8 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.1.1248/12879:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810cf2bbc8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810cf2bbc8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4068 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.4.1906/16999:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810cfd57c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810cfd57c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac40f8 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.2.1907/17001:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810cfd5c48 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810cfd5c48 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4068 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.1.1909/17017:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810cfd60c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810cfd60c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4728 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.0.1920/17053:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810cfd69c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810cfd69c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4068 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.3.2102/17616:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810cfd72c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810cfd72c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4728 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.2.2185/19740:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810c7ec5c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810c7ec5c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac40f8 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.0.2192/19767:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810c7ed7c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810c7ed7c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4728 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.1.2197/19784:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810c7ee0c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810c7ee0c8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4728 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.4.2790/23684:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810f764148 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810f764148 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4068 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.0.2793/23695:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810f764ec8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810f764ec8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac40f8 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.2.2795/23702:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810f765348 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810f765348 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4728 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.3.2814/23768:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff88810f767bc8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff88810f767bc8 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac40f8 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.2.3596/28389:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff888110395c48 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff888110395c48 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac4068 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
3 locks held by syz.3.3597/28404:
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: ksys_fallocate fs/open.c:351 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __do_sys_fallocate fs/open.c:356 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __se_sys_fallocate fs/open.c:354 [inline]
#0: ffff8881026e53f8 (sb_writers#14){....}-{0:0}, at: __x64_sys_fallocate+0x3e/0x80 fs/open.c:354
#1: ffff888110396548 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: inode_lock include/linux/fs.h:818 [inline]
#1: ffff888110396548 (&sb->s_type->i_mutex_key#15){....}-{3:3}, at: hugetlbfs_fallocate+0xb9/0x680 fs/hugetlbfs/inode.c:760
#2: ffff888101ac40f8 (&hugetlb_fault_mutex_table[i]){....}-{3:3}, at: hugetlbfs_fallocate+0x205/0x680 fs/hugetlbfs/inode.c:804
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x5a/0x90 lib/dump_stack.c:120
nmi_cpu_backtrace+0xd4/0x110 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0xd5/0x140 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0x63b/0x670 kernel/hung_task.c:397
kthread+0xd6/0x100 kernel/kthread.c:389
ret_from_fork+0x2c/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 522 Comm: kworker/u8:5 Not tainted 6.13.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:26 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:87 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:147 [inline]
RIP: 0010:default_send_IPI_single_phys+0x52/0xd0 arch/x86/kernel/apic/ipi.c:195
Code: 00 c3 5f ff f6 c4 10 74 7d f3 90 8b 04 25 00 c3 5f ff f6 c4 10 75 f2 89 e8 c1 e0 18 89 04 25 10 c3 5f ff 89 34 25 00 c3 5f ff <9c> 58 f6 c4 02 75 4e 80 e7 02 74 01 fb 5b 5d 41 5c c3 cc cc cc cc
RSP: 0018:ffffc90001543c98 EFLAGS: 00000006
RAX: 00000000000000fb RBX: 0000000000000202 RCX: 0000000000000002
RDX: ffff888237d00000 RSI: 00000000000000fb RDI: 0000000000000001
RBP: 0000000001000000 R08: 000000000002dc0c R09: ffffffff812bec28
R10: ffffc90001543d8c R11: ffffffff8303ee0a R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f402c376440 CR3: 000000000264a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_send_call_function_single_ipi arch/x86/include/asm/smp.h:94 [inline]
send_call_function_single_ipi kernel/smp.c:118 [inline]
smp_call_function_many_cond+0x5a4/0x640 kernel/smp.c:866
on_each_cpu_cond_mask+0x3b/0x70 kernel/smp.c:1051
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2114 [inline]
text_poke_bp_batch+0x1fe/0x310 arch/x86/kernel/alternative.c:2324
text_poke_flush arch/x86/kernel/alternative.c:2515 [inline]
text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2522
arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146
static_key_disable_cpuslocked kernel/jump_label.c:240 [inline]
static_key_disable_cpuslocked+0x4f/0x60 kernel/jump_label.c:228
static_key_disable+0x15/0x20 kernel/jump_label.c:248
toggle_allocation_gate mm/kfence/core.c:854 [inline]
toggle_allocation_gate+0x75/0x130 mm/kfence/core.c:841
process_one_work+0x22f/0x6b0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x1bc/0x350 kernel/workqueue.c:3391
kthread+0xd6/0x100 kernel/kthread.c:389
ret_from_fork+0x2c/0x50 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244