syzbot


WARNING in get_timespec64

Status: closed as invalid on 2024/09/06 13:56
Subsystems: kernel
[Documentation on labels]
First crash: 169d, last: 169d

Sample crash report:
------------[ cut here ]------------
do not call blocking ops when !TASK_RUNNING; state=200 set at [<ffffffff81876107>] futex_wait_queue+0x27/0x1d0 kernel/futex/waitwake.c:352
WARNING: CPU: 0 PID: 5419 at kernel/sched/core.c:8556 __might_sleep+0xb9/0xe0 kernel/sched/core.c:8552
Modules linked in:
CPU: 0 UID: 0 PID: 5419 Comm: syz.0.25 Not tainted 6.11.0-rc5-next-20240827-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:__might_sleep+0xb9/0xe0 kernel/sched/core.c:8552
Code: a1 0e 01 90 42 80 3c 23 00 74 08 48 89 ef e8 de 48 98 00 48 8b 4d 00 48 c7 c7 40 5d 0a 8c 44 89 ee 48 89 ca e8 28 06 f1 ff 90 <0f> 0b 90 90 eb b5 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 70 ff ff ff
RSP: 0018:ffffc900043d7cb0 EFLAGS: 00010246
RAX: 1ce095a4b8976800 RBX: 1ffff110051d86ac RCX: ffff888028ec1e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888028ec3560 R08: ffffffff8155a5b2 R09: fffffbfff1cfa364
R10: dffffc0000000000 R11: fffffbfff1cfa364 R12: dffffc0000000000
R13: 0000000000000200 R14: 000000000000009a R15: ffffffff8c604600
FS:  0000555586741500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffe9ef8ff8 CR3: 0000000011fe2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __might_fault+0x72/0x120 mm/memory.c:6391
 _inline_copy_from_user include/linux/uaccess.h:154 [inline]
 _copy_from_user+0x2a/0xe0 lib/usercopy.c:18
 copy_from_user include/linux/uaccess.h:196 [inline]
 get_timespec64+0x97/0x280 kernel/time/time.c:877
 __do_sys_futex kernel/futex/syscalls.c:171 [inline]
 __se_sys_futex+0x1a2/0x480 kernel/futex/syscalls.c:160
 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: 0033:0x7f2dff779e79
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:00007ffc6637b928 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 000000000001482a RCX: 00007f2dff779e79
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f2dff915f8c
RBP: 00007f2dff915f8c R08: 00007f2dff915f80 R09: 00007ffc6637bc0f
R10: 00007ffc6637ba20 R11: 0000000000000246 R12: 0000000000000032
R13: 00007ffc6637ba20 R14: 00007ffc6637ba40 R15: 00000000000147f8
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/08/28 07:29 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_timespec64
2024/08/28 06:42 linux-next 6f923748057a 6c853ff9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in get_timespec64
* Struck through repros no longer work on HEAD.