panic: runtime error: invalid memory address or nil pointer dereference (31)

Status: fixed on 2026/05/01 11:36
Fix commit: b31f2afdec69 setns: Fix setns(nsfd, 0x0)
First crash: 124d, last: 123d
▶ ▼ Similar bugs (30)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor panic: runtime error: invalid memory address or nil pointer dereference (18) 2 4 1088d 1089d 26/26 fixed on 2023/09/13 00:17
gvisor panic: runtime error: invalid memory address or nil pointer dereference (29) 2 syz, C 7 362d 365d 26/26 fixed on 2025/09/19 06:07
gvisor panic: runtime error: invalid memory address or nil pointer dereference (9) 2 syz, C 262 1669d 1666d 14/26 fixed on 2022/02/10 01:56
gvisor panic: runtime error: invalid memory address or nil pointer dereference (7) 2 syz, C 45305 1771d 1800d 14/26 fixed on 2021/10/27 00:49
gvisor panic: runtime error: invalid memory address or nil pointer dereference (3) 2 syz, C 20051 2192d 2727d 0/26 fixed on 2020/09/09 05:34
gvisor panic: runtime error: invalid memory address or nil pointer dereference (23) 2 syz, C 4239 897d 902d 26/26 fixed on 2024/03/19 11:42
gvisor panic: runtime error: invalid memory address or nil pointer dereference (22) 2 1 1006d 1006d 26/26 fixed on 2023/12/01 06:13
gvisor panic: runtime error: invalid memory address or nil pointer dereference (10) 2 syz, C 11 1622d 1628d 14/26 fixed on 2022/03/25 11:21
gvisor panic: runtime error: invalid memory address or nil pointer dereference (12) 2 syz, C 31 1321d 1382d 18/26 fixed on 2023/01/23 05:20
gvisor panic: runtime error: invalid memory address or nil pointer dereference (28) 2 syz, C 21 567d 567d 26/26 fixed on 2025/02/13 10:39
gvisor panic: runtime error: invalid memory address or nil pointer dereference (26) 2 syz, C 7905 648d 657d 26/26 fixed on 2024/11/22 02:29
gvisor panic: runtime error: invalid memory address or nil pointer dereference (21) 2 1 1021d 1021d 26/26 fixed on 2023/11/17 08:30
gvisor panic: runtime error: invalid memory address or nil pointer dereference (14) 2 syz, C 753 1281d 1282d 18/26 fixed on 2023/02/28 09:05
gvisor panic: runtime error: invalid memory address or nil pointer dereference 2 syz, C 20682 2939d 2993d 0/26 fixed on 2018/08/19 04:32
gvisor panic: runtime error: invalid memory address or nil pointer dereference (25) 2 1 759d 759d 26/26 fixed on 2024/08/06 09:03
gvisor panic: runtime error: invalid memory address or nil pointer dereference (27) 2 syz, C 1117 647d 648d 26/26 fixed on 2024/11/23 14:37
gvisor panic: runtime error: invalid memory address or nil pointer dereference (24) 2 92 890d 890d 0/26 closed as invalid on 2024/03/26 13:32
gvisor panic: runtime error: invalid memory address or nil pointer dereference (13) 2 syz, C 2752 1282d 1285d 18/26 fixed on 2023/02/27 08:23
gvisor panic: runtime error: invalid memory address or nil pointer dereference (8) 2 syz, C 214 1673d 1698d 14/26 fixed on 2022/02/01 22:27
gvisor panic: runtime error: invalid memory address or nil pointer dereference (2) 2 syz, C 4493 2915d 2935d 0/26 fixed on 2018/10/15 18:31
gvisor panic: runtime error: invalid memory address or nil pointer dereference (17) 2 2 1125d 1125d 26/26 fixed on 2023/08/04 01:52
gvisor panic: runtime error: invalid memory address or nil pointer dereference (5) 2 syz 62 2065d 2110d 14/26 fixed on 2021/01/06 10:11
gvisor panic: runtime error: invalid memory address or nil pointer dereference (32) 2 syz 6 65d 58d 26/26 fixed on 2026/07/07 11:38
gvisor panic: runtime error: invalid memory address or nil pointer dereference (11) 2 syz, C 2733 1391d 1485d 14/26 fixed on 2022/11/11 17:56
gvisor panic: runtime error: invalid memory address or nil pointer dereference (19) 2 syz, C 79 1063d 1077d 26/26 fixed on 2023/10/05 23:05
gvisor panic: runtime error: invalid memory address or nil pointer dereference (20) 2 syz, C 8 1035d 1042d 26/26 fixed on 2023/11/02 02:06
gvisor panic: runtime error: invalid memory address or nil pointer dereference (16) 2 syz, C 48 1127d 1134d 26/26 fixed on 2023/08/02 12:57
gvisor panic: runtime error: invalid memory address or nil pointer dereference (30) 2 syz, C 16194 340d 341d 26/26 fixed on 2025/09/26 06:32
gvisor panic: runtime error: invalid memory address or nil pointer dereference (15) 2 1 1174d 1174d 26/26 fixed on 2023/07/12 19:22
gvisor panic: runtime error: invalid memory address or nil pointer dereference (4) 2 syz, C 4 2126d 2144d 0/26 fixed on 2020/11/13 09:22

Sample crash report:
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x13d0acc]

goroutine 579 gp=0xc000f9f880 m=11 mp=0xc000493008 [running]:
panic({0x24913e0?, 0x38cda50?})
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/23/execroot/_main/go/src/runtime/panic.go:802 +0x168 fp=0xc0014b7c68 sp=0xc0014b7bb8 pc=0x4bc328
runtime.panicmem(...)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/23/execroot/_main/go/src/runtime/panic.go:262
runtime.sigpanic()
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/23/execroot/_main/go/src/runtime/signal_unix.go:925 +0x359 fp=0xc0014b7cc8 sp=0xc0014b7c68 pc=0x4bf2b9
gvisor.dev/gvisor/pkg/sentry/kernel.(*FSContext).DecRef(...)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/23/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/fs_context.go:88
gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0xc0014f8c88?, 0xc0014f8c88)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/23/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_exit.go:300 +0xb4c fp=0xc0014b7e68 sp=0xc0014b7cc8 pc=0x13d0acc
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0014f8c88, 0x4f)
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/23/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_run.go:89 +0x6e7 fp=0xc0014b7fb0 sp=0xc0014b7e68 pc=0x13ec587
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/23/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_start.go:416 +0x45 fp=0xc0014b7fe0 sp=0xc0014b7fb0 pc=0x1408545
runtime.goexit({})
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/23/execroot/_main/go/src/runtime/asm_amd64.s:1693 +0x1 fp=0xc0014b7fe8 sp=0xc0014b7fe0 pc=0x4c5b81
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 563
	/syzkaller/.cache/bazel/_bazel_root/a13edd57d9dad04937e1fb5843ea1532/sandbox/linux-sandbox/23/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_start.go:416 +0x1be

Crashes (169):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/04/30 23:51 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-systrap-1-race-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 23:39 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-systrap-1-race-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 23:39 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-1-race panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 23:29 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-1-race panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 23:28 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-2-race-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 23:22 gvisor 51a3f690dc22 753c55b9 console log report syz / log C ci-gvisor-systrap-1 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 23:14 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-2-race-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 23:13 gvisor 51a3f690dc22 753c55b9 console log report syz / log C ci-gvisor-systrap-1 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 23:06 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-2-race panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 23:03 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-3-race-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:59 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-1-race-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:56 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-2-race panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:52 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-3-race-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:52 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-systrap-1-race panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:50 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-3-race panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:48 gvisor 51a3f690dc22 753c55b9 console log report syz / log C ci-gvisor-ptrace-2 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:47 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-1-race-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:46 gvisor 51a3f690dc22 753c55b9 console log report syz / log C ci-gvisor-ptrace-1 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:42 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-systrap-1-race panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:41 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-3-race panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:40 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-3-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:39 gvisor 51a3f690dc22 753c55b9 console log report syz / log C ci-gvisor-ptrace-3 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:38 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-1-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:38 gvisor 51a3f690dc22 753c55b9 console log report syz / log C ci-gvisor-ptrace-2 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:37 gvisor 51a3f690dc22 753c55b9 console log report syz / log C ci-gvisor-ptrace-1 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:35 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-2-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:32 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-3-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:32 gvisor 51a3f690dc22 753c55b9 console log report syz / log C ci-gvisor-kvm panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:29 gvisor 51a3f690dc22 753c55b9 console log report syz / log C ci-gvisor-ptrace-3 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:28 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-kvm-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:28 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-1-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:25 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-ptrace-2-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:24 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-systrap-1-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:22 gvisor 51a3f690dc22 753c55b9 console log report syz / log C ci-gvisor-kvm panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:15 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-systrap-1-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:13 gvisor 51a3f690dc22 753c55b9 .config console log report syz / log C ci-gvisor-kvm-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/05/01 10:04 gvisor 51a3f690dc22 753c55b9 console log report info ci-gvisor-ptrace-3 panic: runtime error: invalid memory address or nil pointer dereference
2026/05/01 09:05 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-kvm-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/05/01 07:14 gvisor 51a3f690dc22 753c55b9 console log report info ci-gvisor-kvm panic: runtime error: invalid memory address or nil pointer dereference
2026/05/01 06:44 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-ptrace-1-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/05/01 05:44 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-systrap-1-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/05/01 04:55 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-ptrace-1-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/05/01 03:53 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-kvm-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/05/01 02:46 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-kvm-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/05/01 01:41 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-ptrace-1-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/05/01 01:09 gvisor 51a3f690dc22 753c55b9 console log report info ci-gvisor-kvm panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:52 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-kvm-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:51 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-ptrace-1-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:40 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-ptrace-2-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:32 gvisor 51a3f690dc22 753c55b9 console log report info ci-gvisor-ptrace-1 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:31 gvisor 51a3f690dc22 753c55b9 console log report info ci-gvisor-ptrace-1 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:26 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-ptrace-3-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:25 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-ptrace-3-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:22 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-ptrace-3-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:22 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-ptrace-3-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:21 gvisor 51a3f690dc22 753c55b9 console log report info ci-gvisor-ptrace-2 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:20 gvisor 51a3f690dc22 753c55b9 console log report info ci-gvisor-ptrace-2 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:17 gvisor 51a3f690dc22 753c55b9 console log report info ci-gvisor-ptrace-1 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:16 gvisor 51a3f690dc22 753c55b9 console log report info ci-gvisor-ptrace-1 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:16 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-kvm-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:09 gvisor 51a3f690dc22 753c55b9 console log report info ci-gvisor-ptrace-2 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:09 gvisor 51a3f690dc22 753c55b9 console log report info ci-gvisor-ptrace-2 panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:07 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-systrap-1-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:07 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-systrap-1-cover panic: runtime error: invalid memory address or nil pointer dereference
2026/04/30 22:05 gvisor 51a3f690dc22 753c55b9 .config console log report info ci-gvisor-kvm-cover panic: runtime error: invalid memory address or nil pointer dereference
* Struck through repros no longer work on HEAD.