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possible deadlock in __lock_task_sighand (2)

Status: upstream: reported C repro on 2024/03/18 21:47
Subsystems: bpf net
[Documentation on labels]
Reported-by: syzbot+34267210261c2cbba2da@syzkaller.appspotmail.com
Fix commit: ff9105993240 bpf, sockmap: Prevent lock inversion deadlock in map delete elem
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-arm64 ci-upstream-gce-leak ci-upstream-kasan-badwrites-root ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-kmsan-gce-386-root ci-upstream-kmsan-gce-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-fs ci2-upstream-kcsan-gce ci2-upstream-net-next-test-gce ci2-upstream-usb], missing on: [ci-qemu2-riscv64]
First crash: 63d, last: 6d08h
▶ ▼ Discussions (3)
Title Replies (including bot) Last reply
[syzbot] [net?] [bpf?] possible deadlock in __lock_task_sighand (2) 2 (4) 2024/05/11 05:58
[syzbot] Monthly bpf report (Apr 2024) 0 (1) 2024/04/11 06:54
[syzbot] Monthly net report (Mar 2024) 0 (1) 2024/03/29 18:37
▶ ▼ Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream possible deadlock in __lock_task_sighand io-uring C done 12 1355d 1356d 15/26 fixed on 2020/09/25 01:17
linux-6.1 possible deadlock in __lock_task_sighand origin:upstream C 154 2d22h 63d 0/3 upstream: reported C repro on 2024/03/14 22:46
linux-5.15 possible deadlock in __lock_task_sighand origin:upstream C 94 2d22h 63d 0/3 upstream: reported C repro on 2024/03/14 19:24

Sample crash report:
======================================================
WARNING: possible circular locking dependency detected
6.9.0-rc5-syzkaller-00185-g3e9bc0472b91 #0 Not tainted
------------------------------------------------------
syz-executor188/5087 is trying to acquire lock:
ffff8880278b1298 (&sighand->siglock){-...}-{2:2}, at: __lock_task_sighand+0x149/0x2e0 kernel/signal.c:1414

but task is already holding lock:
ffff8880b95387e8 (lock#9){+.+.}-{2:2}, at: local_lock_acquire include/linux/local_lock_internal.h:29 [inline]
ffff8880b95387e8 (lock#9){+.+.}-{2:2}, at: __mmap_lock_do_trace_acquire_returned+0x8f/0x630 mm/mmap_lock.c:237

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (lock#9){+.+.}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
       local_lock_acquire include/linux/local_lock_internal.h:29 [inline]
       __mmap_lock_do_trace_acquire_returned+0xa8/0x630 mm/mmap_lock.c:237
       __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
       mmap_read_trylock include/linux/mmap_lock.h:166 [inline]
       stack_map_get_build_id_offset+0x9b2/0x9d0 kernel/bpf/stackmap.c:141
       __bpf_get_stack+0x4ad/0x5a0 kernel/bpf/stackmap.c:449
       ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1985 [inline]
       bpf_get_stack_raw_tp+0x1a3/0x240 kernel/trace/bpf_trace.c:1975
       0xffffffffa0001ff6
       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
       trace_tlb_flush+0x118/0x140 include/trace/events/tlb.h:38
       switch_mm_irqs_off+0x7cb/0xae0
       context_switch kernel/sched/core.c:5393 [inline]
       __schedule+0x1066/0x4a50 kernel/sched/core.c:6746
       __schedule_loop kernel/sched/core.c:6823 [inline]
       schedule+0x14b/0x320 kernel/sched/core.c:6838
       do_wait+0x2a5/0x560 kernel/exit.c:1636
       kernel_wait4+0x2a7/0x3e0 kernel/exit.c:1790
       __do_sys_wait4 kernel/exit.c:1818 [inline]
       __se_sys_wait4 kernel/exit.c:1814 [inline]
       __x64_sys_wait4+0x134/0x1e0 kernel/exit.c:1814
       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

-> #2 (&rq->__lock){-.-.}-{2:2}:
       lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
       _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
       raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
       raw_spin_rq_lock kernel/sched/sched.h:1387 [inline]
       rq_lock kernel/sched/sched.h:1701 [inline]
       task_fork_fair+0x61/0x1e0 kernel/sched/fair.c:12635
       sched_cgroup_fork+0x37c/0x410 kernel/sched/core.c:4845
       copy_process+0x2217/0x3df0 kernel/fork.c:2499
       kernel_clone+0x226/0x8f0 kernel/fork.c:2797
       user_mode_thread+0x132/0x1a0 kernel/fork.c:2875
       rest_init+0x23/0x300 init/main.c:704
       start_kernel+0x47a/0x500 init/main.c:1081
       x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
       x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:488
       common_startup_64+0x13e/0x147

-> #1 (&p->pi_lock){-.-.}-{2:2}:
       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
       class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:553 [inline]
       try_to_wake_up+0xb0/0x1470 kernel/sched/core.c:4262
       signal_wake_up_state+0xb4/0x120 kernel/signal.c:773
       signal_wake_up include/linux/sched/signal.h:448 [inline]
       complete_signal+0x94a/0xcf0 kernel/signal.c:1065
       __send_signal_locked+0xb1b/0xdc0 kernel/signal.c:1185
       do_notify_parent+0xd96/0x10a0 kernel/signal.c:2143
       exit_notify kernel/exit.c:757 [inline]
       do_exit+0x1811/0x27e0 kernel/exit.c:898
       do_group_exit+0x207/0x2c0 kernel/exit.c:1027
       __do_sys_exit_group kernel/exit.c:1038 [inline]
       __se_sys_exit_group kernel/exit.c:1036 [inline]
       __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036
       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

-> #0 (&sighand->siglock){-...}-{2:2}:
       check_prev_add kernel/locking/lockdep.c:3134 [inline]
       check_prevs_add kernel/locking/lockdep.c:3253 [inline]
       validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
       __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
       __lock_task_sighand+0x149/0x2e0 kernel/signal.c:1414
       lock_task_sighand include/linux/sched/signal.h:746 [inline]
       do_send_sig_info kernel/signal.c:1300 [inline]
       group_send_sig_info+0x274/0x310 kernel/signal.c:1453
       bpf_send_signal_common+0x2dd/0x430 kernel/trace/bpf_trace.c:881
       ____bpf_send_signal kernel/trace/bpf_trace.c:886 [inline]
       bpf_send_signal+0x19/0x30 kernel/trace/bpf_trace.c:884
       bpf_prog_da8cbe553dc44a71+0x22/0x29
       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_run4+0x25a/0x490 kernel/trace/bpf_trace.c:2422
       trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:52 [inline]
       __mmap_lock_do_trace_acquire_returned+0x5c8/0x630 mm/mmap_lock.c:237
       __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
       mmap_read_trylock include/linux/mmap_lock.h:166 [inline]
       stack_map_get_build_id_offset+0x9b2/0x9d0 kernel/bpf/stackmap.c:141
       __bpf_get_stack+0x4ad/0x5a0 kernel/bpf/stackmap.c:449
       ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1985 [inline]
       bpf_get_stack_raw_tp+0x1a3/0x240 kernel/trace/bpf_trace.c:1975
       bpf_prog_ec3b2eefa702d8d3+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
       trace_tlb_flush+0x118/0x140 include/trace/events/tlb.h:38
       native_flush_tlb_multi+0x78/0xd0
       __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
       flush_tlb_multi arch/x86/mm/tlb.c:941 [inline]
       flush_tlb_mm_range+0x330/0x5c0 arch/x86/mm/tlb.c:1027
       flush_tlb_page arch/x86/include/asm/tlbflush.h:254 [inline]
       ptep_clear_flush+0x11a/0x170 mm/pgtable-generic.c:101
       wp_page_copy mm/memory.c:3329 [inline]
       do_wp_page+0x1c2e/0x4fd0 mm/memory.c:3660
       handle_pte_fault mm/memory.c:5316 [inline]
       __handle_mm_fault+0x264a/0x7240 mm/memory.c:5441
       handle_mm_fault+0x3c2/0x8a0 mm/memory.c:5606
       do_user_addr_fault arch/x86/mm/fault.c:1362 [inline]
       handle_page_fault arch/x86/mm/fault.c:1505 [inline]
       exc_page_fault+0x446/0x8e0 arch/x86/mm/fault.c:1563
       asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623

other info that might help us debug this:

Chain exists of:
  &sighand->siglock --> &rq->__lock --> lock#9

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(lock#9);
                               lock(&rq->__lock);
                               lock(lock#9);
  lock(&sighand->siglock);

 *** DEADLOCK ***

9 locks held by syz-executor188/5087:
 #0: ffff88805fd07ec8 (&vma->vm_lock->lock){++++}-{3:3}, at: vma_start_read include/linux/mm.h:677 [inline]
 #0: ffff88805fd07ec8 (&vma->vm_lock->lock){++++}-{3:3}, at: lock_vma_under_rcu+0x2f9/0x730 mm/memory.c:5762
 #1: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 #1: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
 #1: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: __pte_offset_map+0x82/0x380 mm/pgtable-generic.c:285
 #2: ffff888021a43738 (ptlock_ptr(ptdesc)#2){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #2: ffff888021a43738 (ptlock_ptr(ptdesc)#2){+.+.}-{2:2}, at: __pte_offset_map_lock+0x1ba/0x300 mm/pgtable-generic.c:373
 #3: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 #3: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
 #3: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline]
 #3: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x114/0x420 kernel/trace/bpf_trace.c:2420
 #4: ffff888025328b20 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:165 [inline]
 #4: ffff888025328b20 (&mm->mmap_lock){++++}-{3:3}, at: stack_map_get_build_id_offset+0x237/0x9d0 kernel/bpf/stackmap.c:141
 #5: ffff8880b95387e8 (lock#9){+.+.}-{2:2}, at: local_lock_acquire include/linux/local_lock_internal.h:29 [inline]
 #5: ffff8880b95387e8 (lock#9){+.+.}-{2:2}, at: __mmap_lock_do_trace_acquire_returned+0x8f/0x630 mm/mmap_lock.c:237
 #6: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 #6: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
 #6: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: get_memcg_path_buf mm/mmap_lock.c:139 [inline]
 #6: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: get_mm_memcg_path+0xb1/0x600 mm/mmap_lock.c:209
 #7: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 #7: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
 #7: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline]
 #7: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x16e/0x490 kernel/trace/bpf_trace.c:2422
 #8: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 #8: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
 #8: ffffffff8e334d20 (rcu_read_lock){....}-{1:2}, at: __lock_task_sighand+0x29/0x2e0 kernel/signal.c:1397

stack backtrace:
CPU: 1 PID: 5087 Comm: syz-executor188 Not tainted 6.9.0-rc5-syzkaller-00185-g3e9bc0472b91 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2187
 check_prev_add kernel/locking/lockdep.c:3134 [inline]
 check_prevs_add kernel/locking/lockdep.c:3253 [inline]
 validate_chain+0x18cb/0x58e0 kernel/locking/lockdep.c:3869
 __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
 __lock_task_sighand+0x149/0x2e0 kernel/signal.c:1414
 lock_task_sighand include/linux/sched/signal.h:746 [inline]
 do_send_sig_info kernel/signal.c:1300 [inline]
 group_send_sig_info+0x274/0x310 kernel/signal.c:1453
 bpf_send_signal_common+0x2dd/0x430 kernel/trace/bpf_trace.c:881
 ____bpf_send_signal kernel/trace/bpf_trace.c:886 [inline]
 bpf_send_signal+0x19/0x30 kernel/trace/bpf_trace.c:884
 bpf_prog_da8cbe553dc44a71+0x22/0x29
 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_run4+0x25a/0x490 kernel/trace/bpf_trace.c:2422
 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:52 [inline]
 __mmap_lock_do_trace_acquire_returned+0x5c8/0x630 mm/mmap_lock.c:237
 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
 mmap_read_trylock include/linux/mmap_lock.h:166 [inline]
 stack_map_get_build_id_offset+0x9b2/0x9d0 kernel/bpf/stackmap.c:141
 __bpf_get_stack+0x4ad/0x5a0 kernel/bpf/stackmap.c:449
 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1985 [inline]
 bpf_get_stack_raw_tp+0x1a3/0x240 kernel/trace/bpf_trace.c:1975
 bpf_prog_ec3b2eefa702d8d3+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
 trace_tlb_flush+0x118/0x140 include/trace/events/tlb.h:38
 native_flush_tlb_multi+0x78/0xd0
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:941 [inline]
 flush_tlb_mm_range+0x330/0x5c0 arch/x86/mm/tlb.c:1027
 flush_tlb_page arch/x86/include/asm/tlbflush.h:254 [inline]
 ptep_clear_flush+0x11a/0x170 mm/pgtable-generic.c:101
 wp_page_copy mm/memory.c:3329 [inline]
 do_wp_page+0x1c2e/0x4fd0 mm/memory.c:3660
 handle_pte_fault mm/memory.c:5316 [inline]
 __handle_mm_fault+0x264a/0x7240 mm/memory.c:5441
 handle_mm_fault+0x3c2/0x8a0 mm/memory.c:5606
 do_user_addr_fault arch/x86/mm/fault.c:1362 [inline]
 handle_page_fault arch/x86/mm/fault.c:1505 [inline]
 exc_page_fault+0x446/0x8e0 arch/x86/mm/fault.c:1563
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f6a162a6260
Code: 41 54 55 48 89 f5 53 89 fb 48 83 ec 18 48 83 3d 8d 0d 0a 00 00 89 54 24 0c 74 08 84 c9 0f 85 09 02 00 00 31 c0 ba 01 00 00 00 <f0> 0f b1 15 80 3a 0a 00 0f 85 0f 02 00 00 4c 8d 25 73 3a 0a 00 4c
RSP: 002b:00007ffd4827c420 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000001 RSI: 00007f6a16347120 RDI: 0000000000000000
RBP: 00007f6a16347120 R08: 0000000000000006 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
 </TASK>

Crashes (1467):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/05/11 05:38 bpf 3e9bc0472b91 9026e142 .config strace log report syz C [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/28 10:36 upstream 5d12ed4bea43 07b455f9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root possible deadlock in __lock_task_sighand
2024/04/23 19:29 upstream 71b1543c83d6 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root possible deadlock in __lock_task_sighand
2024/04/23 07:26 upstream 4d2008430ce8 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root possible deadlock in __lock_task_sighand
2024/04/14 16:58 upstream fe46a7dd189e c8349e48 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root possible deadlock in __lock_task_sighand
2024/03/18 08:33 upstream fe46a7dd189e d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root possible deadlock in __lock_task_sighand
2024/03/14 21:41 upstream fe46a7dd189e d615901c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root possible deadlock in __lock_task_sighand
2024/04/14 22:56 upstream 72374d71c315 c8349e48 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream possible deadlock in __lock_task_sighand
2024/04/10 18:01 upstream 2c71fdf02a95 bb5e6c0f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 possible deadlock in __lock_task_sighand
2024/04/26 07:34 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/26 06:20 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/26 04:29 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/26 03:18 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/25 19:07 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/25 16:20 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/25 13:26 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/25 05:52 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/25 04:23 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/25 03:16 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/24 21:35 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/24 19:13 bpf 443574b03387 8bdc0f22 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/24 12:20 bpf 443574b03387 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/24 11:31 bpf 443574b03387 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/24 09:36 bpf 443574b03387 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/24 05:55 bpf 443574b03387 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/24 03:16 bpf 443574b03387 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/24 01:14 bpf 443574b03387 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/23 23:55 bpf 443574b03387 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/23 18:07 bpf 443574b03387 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/23 13:53 bpf 443574b03387 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/23 10:28 bpf 443574b03387 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/22 22:26 bpf 443574b03387 21339d7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/22 17:04 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/22 15:07 net f99c5f563c17 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce possible deadlock in __lock_task_sighand
2024/04/22 13:52 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/22 12:34 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/22 10:16 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/22 09:12 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/21 15:23 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/21 11:38 net f99c5f563c17 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce possible deadlock in __lock_task_sighand
2024/04/21 10:24 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/21 08:20 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/21 05:39 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/21 04:14 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/20 23:39 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/20 21:56 net f99c5f563c17 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce possible deadlock in __lock_task_sighand
2024/04/20 13:34 net f99c5f563c17 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce possible deadlock in __lock_task_sighand
2024/04/20 12:05 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/20 10:50 net f99c5f563c17 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce possible deadlock in __lock_task_sighand
2024/04/20 08:41 net f99c5f563c17 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce possible deadlock in __lock_task_sighand
2024/04/20 06:38 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/04/20 02:18 bpf 443574b03387 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce possible deadlock in __lock_task_sighand
2024/05/11 10:45 bpf-next fcd1ed89a043 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce possible deadlock in __lock_task_sighand
2024/05/08 01:18 bpf-next 329a6720a3eb cb2dcc0e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce possible deadlock in __lock_task_sighand
2024/05/06 06:09 bpf-next a9e7715ce8b3 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce possible deadlock in __lock_task_sighand
2024/05/02 03:58 net-next 496bc5861c73 3ba885bc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce possible deadlock in __lock_task_sighand
2024/04/08 10:14 bpf-next 14bb1e8c8d4a ca620dd8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce possible deadlock in __lock_task_sighand
2024/03/28 19:06 net-next 237bb5f7f7f5 120789fd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce possible deadlock in __lock_task_sighand
2024/05/04 22:52 linux-next 9221b2819b8a 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root possible deadlock in __lock_task_sighand
2024/04/03 11:34 linux-next c0b832517f62 7925100d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root possible deadlock in __lock_task_sighand
* Struck through repros no longer work on HEAD.