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BUG: spinlock recursion on CPU#1, syz.2.14/5359 lock: 0xffff8880b903ea40, .magic: dead4ead, .owner: syz.2.14/5359, .owner_cpu: 0 CPU: 1 UID: 0 PID: 5359 Comm: syz.2.14 Not tainted 6.11.0-rc4-next-20240822-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 debug_spin_lock_before kernel/locking/spinlock_debug.c:87 [inline] do_raw_spin_lock+0x227/0x370 kernel/locking/spinlock_debug.c:115 raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:595 raw_spin_rq_lock kernel/sched/sched.h:1488 [inline] rq_lock kernel/sched/sched.h:1787 [inline] __schedule+0x354/0x4b30 kernel/sched/core.c:6587 __schedule_loop kernel/sched/core.c:6754 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6769 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2559 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x355/0x620 kernel/sched/completion.c:148 rdmsr_safe_on_cpu+0x16c/0x310 arch/x86/lib/msr-smp.c:181 msr_read+0x160/0x260 arch/x86/kernel/msr.c:66 vfs_read+0x204/0xbc0 fs/read_write.c:474 ksys_read+0x183/0x2b0 fs/read_write.c:619 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: 0033:0x7f424db79e79 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:00007f424ea27038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f424dd15f80 RCX: 00007f424db79e79 RDX: 0000000000018ff8 RSI: 0000000020019680 RDI: 0000000000000004 RBP: 00007f424dbe7916 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f424dd15f80 R15: 00007fffe9bf5788 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/23 02:09 | linux-next | 6a7917c89f21 | 295a4b50 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | BUG: spinlock recursion in __schedule |