BUG: scheduling while atomic: syz.7.85/631/0x00000002
Modules linked in:
CPU: 1 UID: 0 PID: 631 Comm: syz.7.85 Not tainted syzkaller #0 a4a563d0c71b2f3eba821a1af94cbf4bdc8174ca
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
__schedule_bug+0x12b/0x200 kernel/sched/core.c:6626
schedule_debug kernel/sched/core.c:6653 [inline]
__schedule+0xb85/0x20b0 kernel/sched/core.c:7697
__schedule_loop kernel/sched/core.c:7957 [inline]
schedule+0xc5/0x240 kernel/sched/core.c:7972
schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:8029
rwsem_down_write_slowpath+0x5c9/0x1b60 kernel/locking/rwsem.c:1239
__down_write_common kernel/locking/rwsem.c:1383 [inline]
__down_write kernel/locking/rwsem.c:1392 [inline]
down_write+0x163/0x2b0 kernel/locking/rwsem.c:1659
kernfs_remove_by_name_ns+0x8c/0x180 fs/kernfs/dir.c:1737
kernfs_remove_by_name include/linux/kernfs.h:637 [inline]
sysfs_unmerge_group+0xd7/0x130 fs/sysfs/group.c:399
rpm_sysfs_remove drivers/base/power/sysfs.c:826 [inline]
dpm_sysfs_remove+0x7b/0xd0 drivers/base/power/sysfs.c:835
device_del+0x241/0xcf0 drivers/base/core.c:3856
device_unregister drivers/base/core.c:3922 [inline]
device_destroy+0xb0/0x100 drivers/base/core.c:4521
android_device_destroy+0x118/0x180 drivers/usb/gadget/android_configfs_uevent.c:223
gadgets_drop+0x1d/0x30 drivers/usb/gadget/configfs.c:2075
client_drop_item fs/configfs/dir.c:943 [inline]
configfs_rmdir+0x8ba/0x9b0 fs/configfs/dir.c:1546
vfs_rmdir+0x3db/0x560 fs/namei.c:4348
do_rmdir+0x29a/0x590 fs/namei.c:4407
__do_sys_rmdir fs/namei.c:4426 [inline]
__se_sys_rmdir fs/namei.c:4424 [inline]
__x64_sys_rmdir+0x4b/0x60 fs/namei.c:4424
x64_sys_call+0xaf7/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:85
do_syscall_x64 arch/x86/entry/common.c:47 [inline]
do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fd0dc59de99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd0dd44d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007fd0dc826180 RCX: 00007fd0dc59de99
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000002c0
RBP: 00007fd0dc633eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd0dc826218 R14: 00007fd0dc826180 R15: 00007fff358e3228
------------[ cut here ]------------
WARNING: CPU: 0 PID: 631 at lib/stackdepot.c:635 stack_depot_save_flags+0x266/0x800 lib/stackdepot.c:633
Modules linked in:
CPU: 0 UID: 0 PID: 631 Comm: syz.7.85 Tainted: G W syzkaller #0 a4a563d0c71b2f3eba821a1af94cbf4bdc8174ca
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
RIP: 0010:stack_depot_save_flags+0x266/0x800 lib/stackdepot.c:635
Code: 48 83 3d f4 f5 db 05 00 0f 84 00 04 00 00 48 c7 45 c0 00 00 00 00 48 89 d3 65 8b 05 0c a7 1e 7d 4d 89 d7 a9 00 00 f0 00 74 2d <0f> 0b 48 c7 45 c8 00 00 00 00 9c 8f 45 c8 4c 8b 6d c8 fa 48 c7 c7
RSP: 0018:ffffc9000392f980 EFLAGS: 00010206
RAX: 000000007fffffff RBX: ffff8881f5d84fb0 RCX: 0000000000b84fb0
RDX: ffff8881f5d84fb0 RSI: 0000000000000001 RDI: 0000000011a69b31
RBP: ffffc9000392f9e0 R08: 0000000022555c51 R09: 000000002aa5aba9
R10: 000000000000000d R11: ffffffff81759ed0 R12: 00000000812b84fb
R13: 0000000000000000 R14: ffffc9000392f9f0 R15: 000000000000000d
FS: 00007fd0dd44d6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c353cf8 CR3: 0000000121e1a000 CR4: 00000000003526b0
DR0: 000000000000000c DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
kasan_save_stack mm/kasan/common.c:50 [inline]
kasan_save_track+0x4f/0x80 mm/kasan/common.c:70
kasan_save_free_info+0x44/0x50 mm/kasan/generic.c:579
poison_slab_object mm/kasan/common.c:249 [inline]
__kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266
kasan_slab_free include/linux/kasan.h:234 [inline]
slab_free_hook mm/slub.c:2445 [inline]
slab_free mm/slub.c:4714 [inline]
kfree+0x158/0x440 mm/slub.c:4875
gadget_info_attr_release+0xcb/0x130 drivers/usb/gadget/configfs.c:412
config_item_cleanup fs/configfs/item.c:128 [inline]
config_item_release fs/configfs/item.c:137 [inline]
kref_put include/linux/kref.h:65 [inline]
config_item_put+0x175/0x240 fs/configfs/item.c:149
configfs_rmdir+0x8e8/0x9b0 fs/configfs/dir.c:1550
vfs_rmdir+0x3db/0x560 fs/namei.c:4348
do_rmdir+0x29a/0x590 fs/namei.c:4407
__do_sys_rmdir fs/namei.c:4426 [inline]
__se_sys_rmdir fs/namei.c:4424 [inline]
__x64_sys_rmdir+0x4b/0x60 fs/namei.c:4424
x64_sys_call+0xaf7/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:85
do_syscall_x64 arch/x86/entry/common.c:47 [inline]
do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fd0dc59de99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd0dd44d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007fd0dc826180 RCX: 00007fd0dc59de99
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000002c0
RBP: 00007fd0dc633eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd0dc826218 R14: 00007fd0dc826180 R15: 00007fff358e3228
---[ end trace 0000000000000000 ]---
BUG: scheduling while atomic: syz.7.85/631/0x00000000
Modules linked in:
CPU: 1 UID: 0 PID: 631 Comm: syz.7.85 Tainted: G W syzkaller #0 a4a563d0c71b2f3eba821a1af94cbf4bdc8174ca
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
__schedule_bug+0x12b/0x200 kernel/sched/core.c:6626
schedule_debug kernel/sched/core.c:6653 [inline]
__schedule+0xb85/0x20b0 kernel/sched/core.c:7697
__schedule_loop kernel/sched/core.c:7957 [inline]
schedule+0xc5/0x240 kernel/sched/core.c:7972
schedule_timeout+0xc7/0x3b0 kernel/time/timer.c:2596
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common+0x368/0x650 kernel/sched/completion.c:127
wait_for_completion+0x1c/0x40 kernel/sched/completion.c:148
exit_aio+0x28d/0x360 fs/aio.c:927
__mmput+0x2f/0x330 kernel/fork.c:1367
mmput+0x55/0x170 kernel/fork.c:1394
exit_mm kernel/exit.c:575 [inline]
do_exit+0x9a5/0x2850 kernel/exit.c:942
do_group_exit+0x21f/0x2f0 kernel/exit.c:1098
get_signal+0x134c/0x1490 kernel/signal.c:2933
arch_do_signal_or_restart+0xbc/0x700 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x57/0xb0 kernel/entry/common.c:218
do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fd0dc59de99
Code: Unable to access opcode bytes at 0x7fd0dc59de6f.
RSP: 002b:00007fd0dd44d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: 0000000000000000 RBX: 00007fd0dc826180 RCX: 00007fd0dc59de99
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000002c0
RBP: 00007fd0dc633eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd0dc826218 R14: 00007fd0dc826180 R15: 00007fff358e3228