Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2025/09/05 | linux-5.15.y (ToT) | 7a6c2d093c45 | syz | [report] INFO: rcu detected stall in sock_write_iter |
2025/09/05 | upstream (ToT) | d69eb204c255 | syz | Didn't crash |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2025/09/05 | linux-5.15.y (ToT) | 7a6c2d093c45 | syz | [report] INFO: rcu detected stall in sock_write_iter |
2025/09/05 | upstream (ToT) | d69eb204c255 | syz | Didn't crash |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2025/03/16 10:05 | 15m | retest repro | linux-5.15.y | OK log |
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-....: (0 ticks this GP) idle=a37/1/0x4000000000000002 softirq=19359/19362 fqs=5222 (detected by 1, t=10502 jiffies, g=22925, q=165793) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 10641 Comm: syz.3.2907 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:kasan_check_range+0x1ab/0x290 mm/kasan/generic.c:-1 Code: 4d 89 d6 4d 8d 56 07 4d 85 f6 4d 0f 49 d6 49 83 e2 f8 4d 29 d6 74 12 41 80 39 00 0f 85 a0 00 00 00 49 ff c1 49 ff ce 75 ee 5b <41> 5e 41 5f c3 84 db 75 61 f7 c3 00 ff 00 00 75 5e f7 c3 00 00 ff RSP: 0018:ffffc900000079f0 EFLAGS: 00000056 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff812a4f09 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8d698de8 RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1ad31be R10: fffffbfff1ad31be R11: 1ffffffff1ad31bd R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000001 FS: 000055558d8bf500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055556f00d808 CR3: 0000000059f61000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> instrument_atomic_read include/linux/instrumented.h:71 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] cpumask_test_cpu include/linux/cpumask.h:344 [inline] cpu_online include/linux/cpumask.h:895 [inline] trace_irq_work_entry arch/x86/include/asm/trace/irq_vectors.h:64 [inline] __sysvec_irq_work+0x79/0x240 arch/x86/kernel/irq_work.c:20 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline] sysvec_irq_work+0x4a/0xc0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713 RIP: 0010:rcu_read_unlock_special+0x84/0x480 kernel/rcu/tree_plugin.h:674 Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 dd 13 9e 7e 41 f7 c6 00 00 f0 00 74 45 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b RSP: 0018:ffffc90000007ae0 EFLAGS: 00000206 RAX: 6c2d1079a006a600 RBX: 1ffff92000000f60 RCX: 6c2d1079a006a600 RDX: dffffc0000000000 RSI: ffffffff8a0b1620 RDI: ffffffff8a59a240 RBP: ffffc90000007bb8 R08: dffffc0000000000 R09: ffffed101720765a R10: ffffed101720765a R11: 1ffff11017207659 R12: ffffffff8c120900 R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422 rcu_read_unlock include/linux/rcupdate.h:771 [inline] ieee80211_iterate_active_interfaces_atomic+0x132/0x140 net/mac80211/util.c:831 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865 __run_hrtimer kernel/time/hrtimer.c:1690 [inline] __hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1754 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1771 handle_softirqs+0x328/0x820 kernel/softirq.c:576 __do_softirq kernel/softirq.c:610 [inline] invoke_softirq kernel/softirq.c:450 [inline] __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:finish_lock_switch+0x134/0x280 kernel/sched/core.c:4804 Code: be ff ff ff ff e8 ec 7c 55 08 85 c0 74 4a 4d 85 ff 75 66 0f 1f 44 00 00 48 89 df e8 46 e7 5e 08 e8 71 75 2a 00 fb 48 83 c4 08 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 48 89 df e8 d9 0f fe ff 43 80 3c RSP: 0018:ffffc9000380f7c8 EFLAGS: 00000282 RAX: 6c2d1079a006a600 RBX: ffff8880b903a300 RCX: 6c2d1079a006a600 RDX: dffffc0000000000 RSI: ffffffff8a0b1620 RDI: ffffffff8a59a240 RBP: 1ffff1101720760b R08: dffffc0000000000 R09: ffffed101720765a R10: ffffed101720765a R11: 1ffff11017207659 R12: 1ffff110172075b9 R13: dffffc0000000000 R14: ffff8880b903adc8 R15: 0000000000000000 finish_task_switch+0x12f/0x640 kernel/sched/core.c:4921 context_switch kernel/sched/core.c:5052 [inline] __schedule+0x11c3/0x4390 kernel/sched/core.c:6395 schedule+0x11b/0x1e0 kernel/sched/core.c:6478 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue_me+0x22d/0x440 kernel/futex/core.c:2863 futex_wait+0x202/0x5c0 kernel/futex/core.c:2964 do_futex+0xd1c/0x1240 kernel/futex/core.c:3982 __do_sys_futex kernel/futex/core.c:4059 [inline] __se_sys_futex+0x3a3/0x430 kernel/futex/core.c:4040 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f213929bbe9 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:00007ffeee351a08 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 000000000004a478 RCX: 00007f213929bbe9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f21394d2fac RBP: 0000000000000032 R08: 000dcec441570d18 R09: 00000001ee351cff R10: 00007ffeee351b00 R11: 0000000000000246 R12: 00007f21394d2fac R13: 00007ffeee351b00 R14: 000000000004a4aa R15: 00007ffeee351b20 </TASK>
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2025/09/05 08:55 | linux-5.15.y | 7a6c2d093c45 | d291dd2d | .config | console log | report | syz / log | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in futex | ||
2025/04/08 15:43 | linux-5.15.y | 0c935c049b5c | a775275d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_futex | ||
2025/03/19 14:24 | linux-5.15.y | 0c935c049b5c | 8d0a2921 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_futex | ||
2025/01/02 00:57 | linux-5.15.y | 91786f140358 | d3ccff63 | .config | console log | report | syz / log | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in sys_futex | ||
2025/01/01 17:38 | linux-5.15.y | 91786f140358 | d3ccff63 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in sys_futex | ||
2024/12/14 04:24 | linux-5.15.y | 0a51d2d4527b | 7cbfbb3a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_futex | ||
2024/11/13 09:14 | linux-5.15.y | 3c17fc483905 | 62026c85 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_futex | ||
2024/10/12 08:25 | linux-5.15.y | 3a5928702e71 | 084d8178 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_futex | ||
2024/10/06 13:38 | linux-5.15.y | 3a5928702e71 | d7906eff | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in sys_futex | ||
2024/09/23 11:34 | linux-5.15.y | 3a5928702e71 | 89298aad | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_futex | ||
2024/08/13 03:25 | linux-5.15.y | 7e89efd3ae1c | 7b0f4b46 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_futex | ||
2024/08/03 03:41 | linux-5.15.y | 7e89efd3ae1c | 1786a2a8 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_futex | ||
2024/06/12 14:06 | linux-5.15.y | c61bd26ae81a | f815599d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_futex | ||
2024/06/05 16:49 | linux-5.15.y | c61bd26ae81a | 5aa1a7c9 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in sys_futex | ||
2024/08/22 15:56 | linux-5.15.y | fa93fa65db6e | ca02180f | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-arm64 | INFO: rcu detected stall in sys_futex | ||
2025/09/18 21:17 | linux-5.15.y | 43bb85222e53 | e2beed91 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in futex | ||
2025/09/15 11:47 | linux-5.15.y | 43bb85222e53 | e2beed91 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in futex | ||
2025/09/14 01:07 | linux-5.15.y | 43bb85222e53 | e2beed91 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in futex | ||
2025/09/11 15:25 | linux-5.15.y | de9476bb4f1b | fdeaa69b | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in futex | ||
2025/09/05 01:01 | linux-5.15.y | 7a6c2d093c45 | d291dd2d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in futex | ||
2025/09/05 00:42 | linux-5.15.y | 7a6c2d093c45 | d291dd2d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in futex | ||
2025/09/05 00:10 | linux-5.15.y | 7a6c2d093c45 | d291dd2d | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in futex | ||
2025/09/02 11:39 | linux-5.15.y | 01879f56bdde | 807a3b61 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in futex | ||
2025/08/31 03:29 | linux-5.15.y | 01879f56bdde | 807a3b61 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in futex | ||
2025/08/27 15:43 | linux-5.15.y | c79648372d02 | e12e5ba4 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in futex | ||
2025/08/24 14:54 | linux-5.15.y | c79648372d02 | bf27483f | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in futex | ||
2025/08/22 23:50 | linux-5.15.y | c79648372d02 | bf27483f | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in futex | ||
2025/08/16 12:49 | linux-5.15.y | c79648372d02 | 1804e95e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan-perf | INFO: rcu detected stall in futex | ||
2025/08/06 05:55 | linux-5.15.y | c79648372d02 | ffe1dd46 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in futex | ||
2025/07/06 20:02 | linux-5.15.y | 3dea0e7f549e | 4f67c4ae | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in futex | ||
2025/05/17 10:42 | linux-5.15.y | 3b8db0e4f263 | f41472b0 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in futex | ||
2025/05/14 20:58 | linux-5.15.y | 3b8db0e4f263 | a4fa04ef | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in futex | ||
2025/04/16 06:19 | linux-5.15.y | f7347f400572 | a95239b1 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | INFO: rcu detected stall in futex |