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[syzbot] [bpf?] possible deadlock in queue_stack_map_push_elem | 0 (1) | 2024/04/17 21:25 |
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[syzbot] [bpf?] possible deadlock in queue_stack_map_push_elem | 0 (1) | 2024/04/17 21:25 |
============================================ WARNING: possible recursive locking detected 6.9.0-rc6-syzkaller-00130-ga26ff37e624d #0 Not tainted -------------------------------------------- syz-executor470/5242 is trying to acquire lock: ffff88802a9651d8 (&qs->lock){-.-.}-{2:2}, at: queue_stack_map_push_elem+0x1b2/0x660 kernel/bpf/queue_stack_maps.c:210 but task is already holding lock: ffff8880249c41d8 (&qs->lock){-.-.}-{2:2}, at: queue_stack_map_push_elem+0x1b2/0x660 kernel/bpf/queue_stack_maps.c:210 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&qs->lock); lock(&qs->lock); *** DEADLOCK *** May be due to missing lock nesting notation 4 locks held by syz-executor470/5242: #0: ffffffff8e380b08 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_register_prio_may_exist+0xbb/0x190 kernel/tracepoint.c:478 #1: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #1: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #1: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline] #1: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x114/0x420 kernel/trace/bpf_trace.c:2420 #2: ffff8880249c41d8 (&qs->lock){-.-.}-{2:2}, at: queue_stack_map_push_elem+0x1b2/0x660 kernel/bpf/queue_stack_maps.c:210 #3: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #3: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #3: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline] #3: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x114/0x420 kernel/trace/bpf_trace.c:2420 stack backtrace: CPU: 1 PID: 5242 Comm: syz-executor470 Not tainted 6.9.0-rc6-syzkaller-00130-ga26ff37e624d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 check_deadlock kernel/locking/lockdep.c:3062 [inline] validate_chain+0x15c1/0x58e0 kernel/locking/lockdep.c:3856 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 queue_stack_map_push_elem+0x1b2/0x660 kernel/bpf/queue_stack_maps.c:210 bpf_prog_80daba7f9ca62790+0x42/0x46 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run2+0x204/0x420 kernel/trace/bpf_trace.c:2420 __traceiter_contention_end+0x7b/0xb0 include/trace/events/lock.h:122 trace_contention_end+0x114/0x140 include/trace/events/lock.h:122 __pv_queued_spin_lock_slowpath+0x939/0xc60 kernel/locking/qspinlock.c:560 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:584 [inline] queued_spin_lock_slowpath+0x42/0x50 arch/x86/include/asm/qspinlock.h:51 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x272/0x370 kernel/locking/spinlock_debug.c:116 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:111 [inline] _raw_spin_lock_irqsave+0xe1/0x120 kernel/locking/spinlock.c:162 queue_stack_map_push_elem+0x1b2/0x660 kernel/bpf/queue_stack_maps.c:210 bpf_prog_80daba7f9ca62790+0x42/0x46 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline] __bpf_prog_run include/linux/filter.h:657 [inline] bpf_prog_run include/linux/filter.h:664 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline] bpf_trace_run2+0x204/0x420 kernel/trace/bpf_trace.c:2420 __traceiter_contention_end+0x7b/0xb0 include/trace/events/lock.h:122 trace_contention_end+0xf5/0x120 include/trace/events/lock.h:122 __mutex_lock_common kernel/locking/mutex.c:617 [inline] __mutex_lock+0x2e5/0xd70 kernel/locking/mutex.c:752 tracepoint_probe_register_prio_may_exist+0xbb/0x190 kernel/tracepoint.c:478 bpf_raw_tp_link_attach+0x470/0x6d0 kernel/bpf/syscall.c:3865 bpf_raw_tracepoint_open+0x19d/0x210 kernel/bpf/syscall.c:3892 __sys_bpf+0x3c0/0x810 kernel/bpf/syscall.c:5702 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline] __se_sys_bpf kernel/bpf/syscall.c:5765 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5765 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: 0033:0x7f64b1bf1e29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff6302d878 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f64b1bf1e29 RDX: 0000000000000010 RSI: 0000000020000180 RDI: 0000000000000011 RBP: 0000000000000000 R08: 00000000000000a0 R09: 00000000000000a0 R10: 00000000000000a0 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/05/06 17:43 | net | a26ff37e624d | c035c6de | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-net-this-kasan-gce | possible deadlock in queue_stack_map_push_elem | |
2024/04/27 17:33 | bpf | b2ff42c6d3ab | 07b455f9 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-kasan-gce | possible deadlock in queue_stack_map_push_elem | |
2024/04/14 09:19 | net | f99c5f563c17 | c8349e48 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-net-this-kasan-gce | possible deadlock in queue_stack_map_push_elem | |
2024/04/13 21:22 | bpf | 443574b03387 | c8349e48 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-kasan-gce | possible deadlock in queue_stack_map_push_elem | |
2024/05/06 08:25 | bpf-next | a9e7715ce8b3 | 610f2a54 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-next-kasan-gce | possible deadlock in queue_stack_map_push_elem | |
2024/05/05 00:27 | upstream | 7367539ad4b0 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | possible deadlock in queue_stack_map_push_elem | ||
2024/05/02 05:03 | upstream | 0106679839f7 | 3ba885bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | possible deadlock in queue_stack_map_push_elem | ||
2024/05/06 08:30 | upstream | dd5a440a31fa | d884b519 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | possible deadlock in queue_stack_map_push_elem | ||
2024/05/06 06:30 | upstream | b9158815de52 | 610f2a54 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | possible deadlock in queue_stack_map_push_elem | ||
2024/05/06 09:23 | upstream | dd5a440a31fa | d884b519 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream-386 | possible deadlock in queue_stack_map_push_elem | ||
2024/05/02 12:25 | net | 8953285d7bd6 | 3ba885bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-net-this-kasan-gce | possible deadlock in queue_stack_map_push_elem | ||
2024/05/02 10:19 | net | 8953285d7bd6 | 3ba885bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-net-this-kasan-gce | possible deadlock in queue_stack_map_push_elem | ||
2024/04/30 18:00 | bpf | b867247555c4 | 9e0e6af1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-kasan-gce | possible deadlock in queue_stack_map_push_elem | ||
2024/04/14 10:39 | bpf | 443574b03387 | c8349e48 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-kasan-gce | possible deadlock in queue_stack_map_push_elem | ||
2024/05/06 04:04 | bpf-next | a9e7715ce8b3 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-next-kasan-gce | possible deadlock in queue_stack_map_push_elem | ||
2024/05/05 17:48 | bpf-next | a9e7715ce8b3 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-next-kasan-gce | possible deadlock in queue_stack_map_push_elem | ||
2024/05/04 17:41 | bpf-next | a9e7715ce8b3 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-next-kasan-gce | possible deadlock in queue_stack_map_push_elem | ||
2024/05/02 05:00 | bpf-next | ac2f438c2a85 | 3ba885bc | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-bpf-next-kasan-gce | possible deadlock in queue_stack_map_push_elem |