INFO: task syz-executor.1:7545 blocked for more than 143 seconds.
Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25144 pid:7545 tgid:7543 ppid:7060 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
filemap_invalidate_lock_shared include/linux/fs.h:850 [inline]
page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
do_sync_mmap_readahead+0x444/0x850
filemap_fault+0x7e5/0x16a0 mm/filemap.c:3289
__do_fault+0x135/0x460 mm/memory.c:4531
do_read_fault mm/memory.c:4894 [inline]
do_fault mm/memory.c:5024 [inline]
do_pte_missing mm/memory.c:3880 [inline]
handle_pte_fault mm/memory.c:5300 [inline]
__handle_mm_fault+0x45f7/0x7240 mm/memory.c:5441
handle_mm_fault+0x27f/0x770 mm/memory.c:5606
do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x2a8/0x8e0 arch/x86/mm/fault.c:1563
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:fault_in_readable+0x108/0x2b0 mm/gup.c:2002
Code: 00 00 00 0f 01 cb 0f ae e8 48 89 de 48 81 e6 ff 0f 00 00 31 ff e8 c8 03 b9 ff 48 89 d8 48 25 ff 0f 00 00 4c 89 74 24 18 74 30 <8a> 1b e8 d1 fe b8 ff 43 0f b6 04 2f 84 c0 0f 85 4d 01 00 00 88 5c
RSP: 0018:ffffc900032ef840 EFLAGS: 00050206
RAX: 0000000000000700 RBX: 0000000020000700 RCX: ffff88802306da00
RDX: ffffc90009eca000 RSI: 0000000000000700 RDI: 0000000000000000
RBP: ffffc900032ef8f8 R08: ffffffff81dd0188 R09: ffffffff84a3d819
R10: 0000000000000002 R11: ffff88802306da00 R12: 0000000000001000
R13: dffffc0000000000 R14: 1ffff9200065df0c R15: 1ffff9200065df10
fault_in_iov_iter_readable+0x229/0x280 lib/iov_iter.c:94
generic_perform_write+0x220/0x640 mm/filemap.c:3964
ext4_buffered_write_iter+0xc6/0x350 fs/ext4/file.c:299
ext4_file_write_iter+0x1de/0x1a10
call_write_iter include/linux/fs.h:2110 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa84/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe1d467dea9
RSP: 002b:00007fe1d53580c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe1d47ac050 RCX: 00007fe1d467dea9
RDX: 0000000000001006 RSI: 0000000020000700 RDI: 0000000000000006
RBP: 00007fe1d46ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fe1d47ac050 R15: 00007fff6b4ba198
INFO: task syz-executor.1:7554 blocked for more than 143 seconds.
Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28336 pid:7554 tgid:7543 ppid:7060 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
inode_lock include/linux/fs.h:795 [inline]
ext4_dio_write_iter fs/ext4/file.c:530 [inline]
ext4_file_write_iter+0x388/0x1a10 fs/ext4/file.c:696
call_write_iter include/linux/fs.h:2110 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0xa84/0xcb0 fs/read_write.c:590
ksys_write+0x1a0/0x2c0 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe1d467dea9
RSP: 002b:00007fe1d53370c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fe1d47ac120 RCX: 00007fe1d467dea9
RDX: 000000000000f000 RSI: 0000000020000200 RDI: 0000000000000007
RBP: 00007fe1d46ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fe1d47ac120 R15: 00007fff6b4ba198
INFO: task syz-executor.1:7555 blocked for more than 144 seconds.
Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27032 pid:7555 tgid:7543 ppid:7060 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
filemap_invalidate_lock_shared include/linux/fs.h:850 [inline]
page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
do_sync_mmap_readahead+0x444/0x850
filemap_fault+0x7e5/0x16a0 mm/filemap.c:3289
__do_fault+0x135/0x460 mm/memory.c:4531
do_read_fault mm/memory.c:4894 [inline]
do_fault mm/memory.c:5024 [inline]
do_pte_missing mm/memory.c:3880 [inline]
handle_pte_fault mm/memory.c:5300 [inline]
__handle_mm_fault+0x45f7/0x7240 mm/memory.c:5441
handle_mm_fault+0x27f/0x770 mm/memory.c:5606
do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x2a8/0x8e0 arch/x86/mm/fault.c:1563
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:do_strncpy_from_user lib/strncpy_from_user.c:41 [inline]
RIP: 0010:strncpy_from_user+0x110/0x2f0 lib/strncpy_from_user.c:139
Code: 00 00 00 4c 89 e6 e8 bf 74 b6 fc 49 83 fc 07 0f 86 9a 00 00 00 48 89 6c 24 08 48 c7 44 24 10 f8 ff ff ff 45 31 ed 4c 89 3c 24 <4f> 8b 3c 2f 48 b8 ff fe fe fe fe fe fe fe 49 8d 1c 07 4c 89 fd 48
RSP: 0018:ffffc90005317e40 EFLAGS: 00050246
RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffff88801e758000
RDX: ffffc9000a2cc000 RSI: 0000000000000fe0 RDI: 0000000000000007
RBP: 0000000000000fe0 R08: ffffffff84df9091 R09: 1ffffd4000292100
R10: dffffc0000000000 R11: fffff94000292101 R12: 0000000000000fe0
R13: 0000000000000000 R14: ffff888052425520 R15: 0000000020000080
getname_flags+0xfa/0x4f0 fs/namei.c:150
getname fs/namei.c:218 [inline]
__do_sys_mkdirat fs/namei.c:4161 [inline]
__se_sys_mkdirat fs/namei.c:4159 [inline]
__x64_sys_mkdirat+0x7c/0xa0 fs/namei.c:4159
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe1d467c9a7
RSP: 002b:00007fe1d5315ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fe1d5315f80 RCX: 00007fe1d467c9a7
RDX: 00000000000001ff RSI: 0000000020000080 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000080
R13: 00007fe1d5315f40 R14: 0000000000000000 R15: 0000000000000000
INFO: task syz-executor.1:7556 blocked for more than 144 seconds.
Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:26872 pid:7556 tgid:7543 ppid:7060 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
filemap_invalidate_lock_shared include/linux/fs.h:850 [inline]
page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
do_sync_mmap_readahead+0x444/0x850
filemap_fault+0x7e5/0x16a0 mm/filemap.c:3289
__do_fault+0x135/0x460 mm/memory.c:4531
do_read_fault mm/memory.c:4894 [inline]
do_fault mm/memory.c:5024 [inline]
do_pte_missing mm/memory.c:3880 [inline]
handle_pte_fault mm/memory.c:5300 [inline]
__handle_mm_fault+0x45f7/0x7240 mm/memory.c:5441
handle_mm_fault+0x27f/0x770 mm/memory.c:5606
do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x2a8/0x8e0 arch/x86/mm/fault.c:1563
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:do_strnlen_user lib/strnlen_user.c:37 [inline]
RIP: 0010:strnlen_user+0xab/0x200 lib/strnlen_user.c:113
Code: 6f b6 fc 48 89 d8 4c 01 f8 0f 88 4c 01 00 00 4c 39 f8 0f 82 43 01 00 00 48 89 6c 24 08 0f 01 cb 0f ae e8 4c 89 f8 48 83 e0 f8 <48> 8b 28 45 89 fc 41 83 e4 07 42 8d 0c e5 00 00 00 00 48 c7 c0 ff
RSP: 0018:ffffc9000322fdb0 EFLAGS: 00050202
RAX: 0000000020000380 RBX: 0000000000001000 RCX: ffff88806596da00
RDX: ffffc9000aad0000 RSI: 0000000020000380 RDI: 0000000020001380
RBP: 0000000000001000 R08: ffffffff84df9324 R09: 1ffffffff1f4fa15
R10: dffffc0000000000 R11: fffffbfff1f4fa16 R12: 0000000020001380
R13: dffffc0000000000 R14: 0000000020000380 R15: 0000000020000380
strndup_user+0x1f/0xc0 mm/util.c:265
copy_mount_string fs/namespace.c:3587 [inline]
__do_sys_mount fs/namespace.c:3883 [inline]
__se_sys_mount+0x9f/0x3c0 fs/namespace.c:3875
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe1d467dea9
RSP: 002b:00007fe1d41ff0c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fe1d47ac2c0 RCX: 00007fe1d467dea9
RDX: 0000000020000380 RSI: 00000000200003c0 RDI: 0000000000000000
RBP: 00007fe1d46ca4a4 R08: 0000000020000400 R09: 0000000000000000
R10: 0000000000001008 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fe1d47ac2c0 R15: 00007fff6b4ba198
INFO: task syz-executor.1:7557 blocked for more than 145 seconds.
Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:26584 pid:7557 tgid:7543 ppid:7060 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
filemap_invalidate_lock_shared include/linux/fs.h:850 [inline]
page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
do_sync_mmap_readahead+0x444/0x850
filemap_fault+0x7e5/0x16a0 mm/filemap.c:3289
__do_fault+0x135/0x460 mm/memory.c:4531
do_read_fault mm/memory.c:4894 [inline]
do_fault mm/memory.c:5024 [inline]
do_pte_missing mm/memory.c:3880 [inline]
handle_pte_fault mm/memory.c:5300 [inline]
__handle_mm_fault+0x45f7/0x7240 mm/memory.c:5441
handle_mm_fault+0x27f/0x770 mm/memory.c:5606
do_user_addr_fault arch/x86/mm/fault.c:1413 [inline]
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x2a8/0x8e0 arch/x86/mm/fault.c:1563
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:do_strncpy_from_user lib/strncpy_from_user.c:41 [inline]
RIP: 0010:strncpy_from_user+0x110/0x2f0 lib/strncpy_from_user.c:139
Code: 00 00 00 4c 89 e6 e8 bf 74 b6 fc 49 83 fc 07 0f 86 9a 00 00 00 48 89 6c 24 08 48 c7 44 24 10 f8 ff ff ff 45 31 ed 4c 89 3c 24 <4f> 8b 3c 2f 48 b8 ff fe fe fe fe fe fe fe 49 8d 1c 07 4c 89 fd 48
RSP: 0018:ffffc9000320fc98 EFLAGS: 00050246
RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffff888065969e00
RDX: ffffc9000acd1000 RSI: 0000000000000fe0 RDI: 0000000000000007
RBP: 0000000000000fe0 R08: ffffffff84df9091 R09: 1ffffd4000292100
R10: dffffc0000000000 R11: fffff94000292101 R12: 0000000000000fe0
R13: 0000000000000000 R14: ffff888052426620 R15: 0000000020000040
getname_flags+0xfa/0x4f0 fs/namei.c:150
do_sys_openat2+0xd2/0x1d0 fs/open.c:1400
do_sys_open fs/open.c:1421 [inline]
__do_sys_openat fs/open.c:1437 [inline]
__se_sys_openat fs/open.c:1432 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1432
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe1d467dea9
RSP: 002b:00007fe1d41de0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe1d47ac390 RCX: 00007fe1d467dea9
RDX: 0000000000000002 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007fe1d46ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fe1d47ac390 R15: 00007fff6b4ba198
INFO: task syz-executor.1:7558 blocked for more than 145 seconds.
Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27064 pid:7558 tgid:7543 ppid:7060 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1796/0x4a00 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6838
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6895
rwsem_down_read_slowpath kernel/locking/rwsem.c:1086 [inline]
__down_read_common kernel/locking/rwsem.c:1250 [inline]
__down_read kernel/locking/rwsem.c:1263 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1528
filemap_invalidate_lock_shared include/linux/fs.h:850 [inline]
page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
do_sync_mmap_readahead+0x444/0x850
filemap_fault+0x7e5/0x16a0 mm/filemap.c:3289
__do_fault+0x135/0x460 mm/memory.c:4531
do_read_fault mm/memory.c:4894 [inline]
do_fault mm/memory.c:5024 [inline]
do_pte_missing mm/memory.c:3880 [inline]
handle_pte_fault mm/memory.c:5300 [inline]
__handle_mm_fault+0x45f7/0x7240 mm/memory.c:5441
handle_mm_fault+0x27f/0x770 mm/memory.c:5606
do_user_addr_fault arch/x86/mm/fault.c:1362 [inline]
handle_page_fault arch/x86/mm/fault.c:1505 [inline]
exc_page_fault+0x446/0x8e0 arch/x86/mm/fault.c:1563
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fe1d4629681
RSP: 002b:00007fe1d41bc578 EFLAGS: 00010202
RAX: 0000000000000008 RBX: 00007fe1d41bceb8 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00007fe1d41bc670
RBP: 00007fe1d41bc670 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000020000742 R11: 00000000000002cf R12: 000000000000000a
R13: 00007fe1d41bcf80 R14: 00007fe1d41bcf40 R15: 00007fe1c9400000
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4830:
#0: ffff88802b28f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031432f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
3 locks held by syz-fuzzer/5073:
#0: ffff88802fdf4420 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:409
#1: ffff8880586bf200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:830 [inline]
#1: ffff8880586bf200 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: do_unlinkat+0x26a/0x830 fs/namei.c:4386
#2: ffff88807add2c00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
#2: ffff88807add2c00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: vfs_unlink+0xe4/0x600 fs/namei.c:4324
1 lock held by syz-executor.4/6581:
4 locks held by syz-executor.1/7545:
#0: ffff88802c13cac8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x259/0x320 fs/file.c:1191
#1: ffff88802fdf4420 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2855 [inline]
#1: ffff88802fdf4420 (sb_writers#4){.+.+}-{0:0}, at: vfs_write+0x233/0xcb0 fs/read_write.c:586
#2: ffff88807add2c00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
#2: ffff88807add2c00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_buffered_write_iter+0x97/0x350 fs/ext4/file.c:294
#3: ffff88801d53b748 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:850 [inline]
#3: ffff88801d53b748 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
3 locks held by syz-executor.1/7554:
#0: ffff88802d592d48 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x259/0x320 fs/file.c:1191
#1: ffff88802fdf4420 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2855 [inline]
#1: ffff88802fdf4420 (sb_writers#4){.+.+}-{0:0}, at: vfs_write+0x233/0xcb0 fs/read_write.c:586
#2: ffff88807add2c00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
#2: ffff88807add2c00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_dio_write_iter fs/ext4/file.c:530 [inline]
#2: ffff88807add2c00 (&sb->s_type->i_mutex_key#7){++++}-{3:3}, at: ext4_file_write_iter+0x388/0x1a10 fs/ext4/file.c:696
1 lock held by syz-executor.1/7555:
#0: ffff88801d53b748 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:850 [inline]
#0: ffff88801d53b748 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
1 lock held by syz-executor.1/7556:
#0: ffff88801d53b748 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:850 [inline]
#0: ffff88801d53b748 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
1 lock held by syz-executor.1/7557:
#0: ffff88801d53b748 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:850 [inline]
#0: ffff88801d53b748 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
1 lock held by syz-executor.1/7558:
#0: ffff88801d53b748 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:850 [inline]
#0: ffff88801d53b748 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0xfb/0x7a0 mm/readahead.c:225
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfde/0x1020 kernel/hung_task.c:380
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 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 PID: 129 Comm: kworker/u8:5 Not tainted 6.9.0-rc5-syzkaller-00053-ge33c4963bf53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:__unwind_start+0x0/0x7c0 arch/x86/kernel/unwind_orc.c:687
Code: df e8 94 a2 b5 00 e9 3a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 83 ec 30 48 89 4c 24
RSP: 0018:ffffc90002d8e778 EFLAGS: 00000293
RAX: ffffffff8137d1fe RBX: ffffc90002d8e870 RCX: ffffc90002d8e810
RDX: 0000000000000000 RSI: ffff88801b329e00 RDI: ffffc90002d8e780
RBP: ffffc90002d8e810 R08: 0000000000000006 R09: 0000000000000000
R10: ffffc90002d8e910 R11: fffff520005b1de8 R12: ffff88801b329e00
R13: ffffffff8181dfb0 R14: ffffc90002d8e860 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe0758af0c CR3: 000000000e134000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x103/0x1b0 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slub.c:3966 [inline]
__kmalloc+0x233/0x4a0 mm/slub.c:3979
kmalloc include/linux/slab.h:632 [inline]
kzalloc include/linux/slab.h:749 [inline]
ieee802_11_parse_elems_full+0xd5/0x2870 net/mac80211/parse.c:880
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2325 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2332 [inline]
ieee80211_inform_bss+0x15f/0x1080 net/mac80211/scan.c:79
rdev_inform_bss net/wireless/rdev-ops.h:418 [inline]
cfg80211_inform_single_bss_data+0x1005/0x22e0 net/wireless/scan.c:2268
cfg80211_inform_bss_data+0x3e3/0x57d0 net/wireless/scan.c:3067
cfg80211_inform_bss_frame_data+0x3bc/0x720 net/wireless/scan.c:3157
ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226
ieee80211_rx_bss_info net/mac80211/ibss.c:1099 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1578 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1962/0x2d70 net/mac80211/ibss.c:1605
ieee80211_iface_process_skb net/mac80211/iface.c:1605 [inline]
ieee80211_iface_work+0x8a3/0xf10 net/mac80211/iface.c:1659
cfg80211_wiphy_work+0x221/0x260 net/wireless/core.c:437
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa10/0x17c0 kernel/workqueue.c:3335
worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244