=============================
[ BUG: Invalid wait context ]
6.12.0-rc7-syzkaller #0 Not tainted
-----------------------------
syz.9.915/11237 is trying to lock:
ffff8880b863ea98 (card_mutex){+.+.}-{3:3}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
other info that might help us debug this:
context-{4:4}
3 locks held by syz.9.915/11237:
#0: ffff8880353c9650 (&u->iolock){+.+.}-{3:3}, at: __unix_dgram_recvmsg+0x246/0x12f0 net/unix/af_unix.c:2432
#1: ffff8880353c9798 (&u->peer_wait){+.+.}-{2:2}, at: __wake_up_common_lock+0x25/0x1e0 kernel/sched/wait.c:105
#2: ffff8880301c8a18 (&p->pi_lock){-.-.}-{2:2}, at: class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline]
#2: ffff8880301c8a18 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xbe/0x14b0 kernel/sched/core.c:4165
stack backtrace:
CPU: 1 UID: 0 PID: 11237 Comm: syz.9.915 Not tainted 6.12.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_lock_invalid_wait_context kernel/locking/lockdep.c:4802 [inline]
check_wait_context kernel/locking/lockdep.c:4874 [inline]
__lock_acquire+0x154a/0x2050 kernel/locking/lockdep.c:5152
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
_raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
raw_spin_rq_lock kernel/sched/sched.h:1505 [inline]
__task_rq_lock+0xdf/0x3e0 kernel/sched/core.c:676
ttwu_runnable kernel/sched/core.c:3741 [inline]
try_to_wake_up+0x18f/0x14b0 kernel/sched/core.c:4195
autoremove_wake_function+0x16/0x110 kernel/sched/wait.c:384
__wake_up_common kernel/sched/wait.c:89 [inline]
__wake_up_common_lock+0x132/0x1e0 kernel/sched/wait.c:106
__unix_dgram_recvmsg+0x5f4/0x12f0 net/unix/af_unix.c:2462
sock_recvmsg_nosec+0x190/0x1d0 net/socket.c:1051
____sys_recvmsg+0x3cd/0x480 net/socket.c:2824
___sys_recvmsg net/socket.c:2868 [inline]
do_recvmmsg+0x45e/0xad0 net/socket.c:2962
__sys_recvmmsg net/socket.c:3041 [inline]
__do_sys_recvmmsg net/socket.c:3064 [inline]
__se_sys_recvmmsg net/socket.c:3057 [inline]
__x64_sys_recvmmsg+0x199/0x250 net/socket.c:3057
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f993797e719
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9938826038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f9937b36058 RCX: 00007f993797e719
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f99379f139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f9937b36058 R15: 00007ffc0754a538
BUG: unable to handle page fault for address: fffffbfff46e2b8d
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23ffe4067 P4D 23ffe4067 PUD 23ffe3067 PMD 0
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 11237 Comm: syz.9.915 Not tainted 6.12.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x82/0x290 mm/kasan/generic.c:189
Code: 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd <41> 80 3b 00 0f 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00
RSP: 0018:ffffc9000455f200 EFLAGS: 00010086
RAX: 0000000001e89001 RBX: 1ffffffff46e2b8d RCX: ffffffff81705a7b
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffffa3715c68
RBP: ffffffffffffffff R08: ffffffffa3715c6f R09: 1ffffffff46e2b8d
R10: dffffc0000000000 R11: fffffbfff46e2b8d R12: ffff888035291e00
R13: ffff8880352928d8 R14: dffffc0000000001 R15: fffffbfff46e2b8e
FS: 00007f99388266c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff46e2b8d CR3: 000000002f932000 CR4: 0000000000350ef0
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
__lock_acquire+0xc8b/0x2050 kernel/locking/lockdep.c:5172
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5825
_raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:598
raw_spin_rq_lock kernel/sched/sched.h:1505 [inline]
__task_rq_lock+0xdf/0x3e0 kernel/sched/core.c:676
ttwu_runnable kernel/sched/core.c:3741 [inline]
try_to_wake_up+0x18f/0x14b0 kernel/sched/core.c:4195
autoremove_wake_function+0x16/0x110 kernel/sched/wait.c:384
__wake_up_common kernel/sched/wait.c:89 [inline]
__wake_up_common_lock+0x132/0x1e0 kernel/sched/wait.c:106
__unix_dgram_recvmsg+0x5f4/0x12f0 net/unix/af_unix.c:2462
sock_recvmsg_nosec+0x190/0x1d0 net/socket.c:1051
____sys_recvmsg+0x3cd/0x480 net/socket.c:2824
___sys_recvmsg net/socket.c:2868 [inline]
do_recvmmsg+0x45e/0xad0 net/socket.c:2962
__sys_recvmmsg net/socket.c:3041 [inline]
__do_sys_recvmmsg net/socket.c:3064 [inline]
__se_sys_recvmmsg net/socket.c:3057 [inline]
__x64_sys_recvmmsg+0x199/0x250 net/socket.c:3057
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f993797e719
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9938826038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f9937b36058 RCX: 00007f993797e719
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f99379f139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f9937b36058 R15: 00007ffc0754a538
Modules linked in:
CR2: fffffbfff46e2b8d
---[ end trace 0000000000000000 ]---
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x82/0x290 mm/kasan/generic.c:189
Code: 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd <41> 80 3b 00 0f 85 c9 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00
RSP: 0018:ffffc9000455f200 EFLAGS: 00010086
RAX: 0000000001e89001 RBX: 1ffffffff46e2b8d RCX: ffffffff81705a7b
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffffa3715c68
RBP: ffffffffffffffff R08: ffffffffa3715c6f R09: 1ffffffff46e2b8d
R10: dffffc0000000000 R11: fffffbfff46e2b8d R12: ffff888035291e00
R13: ffff8880352928d8 R14: dffffc0000000001 R15: fffffbfff46e2b8e
FS: 00007f99388266c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffbfff46e2b8d CR3: 000000002f932000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess), 7 bytes skipped:
0: df 4f 8d fisttps -0x73(%rdi)
3: 3c 31 cmp $0x31,%al
5: 4c 89 fd mov %r15,%rbp
8: 4c 29 dd sub %r11,%rbp
b: 48 83 fd 10 cmp $0x10,%rbp
f: 7f 29 jg 0x3a
11: 48 85 ed test %rbp,%rbp
14: 0f 84 3e 01 00 00 je 0x158
1a: 4c 89 cd mov %r9,%rbp
1d: 48 f7 d5 not %rbp
20: 48 01 dd add %rbx,%rbp
* 23: 41 80 3b 00 cmpb $0x0,(%r11) <-- trapping instruction
27: 0f 85 c9 01 00 00 jne 0x1f6
2d: 49 ff c3 inc %r11
30: 48 ff c5 inc %rbp
33: 75 ee jne 0x23
35: e9 .byte 0xe9
36: 1e (bad)
37: 01 00 add %eax,(%rax)