syzbot

 sign-in | mailing list | source | docs
🐞 Open [854]
🐞 Fixed [87]
🐞 Invalid [1271]
⬇ Missing Backports [132]
≡ Crashes
Kernel Health Bugs/Month Bug Lifetimes Fuzzing
💬 Send us feedback

corrupted report

Status: upstream: reported on 2023/03/12 22:30
Reported-by: syzbot+9987a800782441ea44a0@syzkaller.appspotmail.com
First crash: 1126d, last: 2h48m
▶ ▼ Similar bugs (23)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 corrupted report (2) -1 6 951d 1029d 0/2 auto-obsoleted due to no activity on 2023/12/02 13:09
android-54 corrupted report (2) -1 105976 320d 441d 0/2 auto-obsoleted due to no activity on 2025/07/15 11:08
linux-4.19 corrupted report gfs2 sysv ext4 hfsplus -1 6619 1132d 2558d 0/1 upstream: reported on 2019/04/11 04:14
android-414 corrupted report -1 5888 2323d 2558d 0/1 auto-closed as invalid on 2020/02/29 14:20
android-5-15 corrupted report -1 4 1000d 1082d 0/2 auto-obsoleted due to no activity on 2023/10/14 13:19
android-6-12 corrupted report -1 191 149d 294d 0/1 auto-obsoleted due to no activity on 2026/01/03 01:56
linux-6.6 corrupted report -1 7761 2h43m 299d 0/2 upstream: reported on 2025/06/16 23:08
upstream corrupted report -1 29 3060d 3062d 0/29 closed as invalid on 2017/11/24 12:19
android-54 corrupted report -1 860856 621d 2252d 0/2 auto-obsoleted due to no activity on 2024/10/07 14:17
linux-4.4 corrupted report -1 12 2403d 2531d 0/1 auto-closed as invalid on 2020/01/10 12:28
android-6-12 corrupted report (2) -1 767 4h11m 80d 0/1 premoderation: reported on 2026/01/21 07:36
linux-4.14 corrupted report cramfs -1 6026 1132d 2556d 0/1 upstream: reported on 2019/04/12 21:21
android-6-1 corrupted report -1 348 9h30m 991d 0/2 premoderation: reported on 2023/07/25 23:06
android-5-15 corrupted report (3) -1 71 513d 739d 0/2 auto-obsoleted due to no activity on 2025/01/03 14:55
android-5-10 corrupted report -1 289 1431d 1580d 0/2 auto-closed as invalid on 2022/07/11 05:59
android-49 corrupted report -1 567 3060d 3062d 0/3 closed as invalid on 2017/11/24 12:19
android-5-15 corrupted report (4) -1 184 13h39m 455d 0/2 premoderation: reported on 2025/01/11 16:11
android-5-15 corrupted report (2) -1 1 862d 862d 0/2 auto-obsoleted due to no activity on 2024/03/01 04:17
upstream corrupted report (2) mm block -1 1095439 now 2922d 0/29 moderation: reported on 2018/04/11 09:52
android-49 corrupted report (2) -1 19181 2320d 2554d 0/3 auto-closed as invalid on 2020/03/03 12:39
android-5-10 corrupted report (3) -1 103 5d05h 733d 0/2 premoderation: reported on 2024/04/08 19:56
linux-6.1 corrupted report -1 188429 now 1131d 0/3 upstream: reported on 2023/03/07 17:14
android-44 corrupted report -1 7075 2321d 2554d 0/2 auto-closed as invalid on 2020/03/02 23:26

Sample crash report:
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (0 ticks this GP) idle=683/1/0x4000000000000002 softirq=48463/48463 fqs=5242 
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P17965
	(detected by 1, t=10502 jiffies, g=70109, q=5662)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 17965 Comm: syz.6.3395 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:205
Code: 84 00 00 00 00 00 53 48 89 fb e8 17 00 00 00 48 8b 3d 90 c4 10 0c 48 89 de 5b e9 b7 41 44 00 00 00 cc cc 00 00 cc 48 8b 04 24 <65> 48 8b 0d a4 4e 89 7e 65 8b 15 a5 4e 89 7e 81 e2 00 01 ff 00 74
RSP: 0018:ffffc9000328f668 EFLAGS: 00000093
RAX: ffffffff819a584e RBX: ffffffff8c31eaa0 RCX: ffff88801dbe3b80
RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffffffff8c31eaa0
RBP: ffffc9000328f790 R08: ffff8880b9033d77 R09: 1ffff110172067ae
R10: dffffc0000000000 R11: ffffed10172067af R12: 00000000ffffffe4
R13: 1ffff92000651ed4 R14: ffffc9000328f720 R15: ffffc9000328f880
FS:  0000555573576500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc3e43eef90 CR3: 0000000045f36000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 rcu_lock_release+0xe/0x20 include/linux/rcupdate.h:318
 rcu_read_unlock include/linux/rcupdate.h:773 [inline]
 __perf_event_output kernel/events/core.c:7813 [inline]
 perf_event_output_forward+0x261/0x2e0 kernel/events/core.c:7822
 __perf_event_overflow+0x364/0x530 kernel/events/core.c:9515
 perf_tp_event+0x383/0xbf0 kernel/events/core.c:10047
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021
 perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 12 f2 9c 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc9000328fcc0 EFLAGS: 00000206
RAX: 015df8825deb5e00 RBX: 1ffff92000651f9c RCX: 015df8825deb5e00
RDX: dffffc0000000000 RSI: ffffffff8a2b2780 RDI: ffffffff8a79f980
RBP: ffffc9000328fd88 R08: ffffffff901d40cf R09: 1ffffffff203a819
R10: dffffc0000000000 R11: fffffbfff203a81a R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000246 R15: ffffffff8c322fe0
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock+0x85/0x90 include/linux/rcupdate.h:772
 dput+0xc0/0x1a0 fs/dcache.c:886
 __fput+0x5ee/0x930 fs/file_table.c:319
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f9ff690a819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc1d11e168 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007ffc1d11e250 RCX: 00007f9ff690a819
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 000000000008531e R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b2e320000 R11: 0000000000000246 R12: 00007ffc1d11e290
R13: 00007f9ff6b83fac R14: 0000000000085436 R15: 00007f9ff6b83fa0
 </TASK>
task:syz.6.3395      state:R  running task     stack:26128 pid:17965 ppid: 16061 flags:0x0000400c
Call Trace:
 <TASK>
 </TASK>

Crashes (9401):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/04/12 03:53 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/12 02:42 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/11 13:22 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/11 11:20 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/11 05:58 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/11 03:21 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/10 14:01 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/10 10:31 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/10 09:09 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/10 08:02 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/10 04:01 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/10 01:49 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/10 01:11 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/09 23:23 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/09 21:57 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/09 20:41 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/09 19:26 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/09 17:10 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/09 10:49 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/09 09:32 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/09 08:17 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/09 05:56 linux-5.15.y 91d48252ad4b 38c8e246 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/09 01:29 linux-5.15.y 91d48252ad4b d9b7f621 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/09 00:43 linux-5.15.y 91d48252ad4b d9b7f621 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/08 19:20 linux-5.15.y 91d48252ad4b d9b7f621 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/08 12:44 linux-5.15.y 91d48252ad4b 2c961e87 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/08 11:00 linux-5.15.y 91d48252ad4b 2c961e87 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/08 05:07 linux-5.15.y 91d48252ad4b 2c961e87 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/08 02:31 linux-5.15.y 91d48252ad4b 2c961e87 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/07 21:15 linux-5.15.y 91d48252ad4b 628666c6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/07 19:57 linux-5.15.y 91d48252ad4b 628666c6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/07 18:14 linux-5.15.y 91d48252ad4b 628666c6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/07 17:09 linux-5.15.y 91d48252ad4b 628666c6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/07 13:09 linux-5.15.y 91d48252ad4b 628666c6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/07 10:52 linux-5.15.y 91d48252ad4b 628666c6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/07 08:08 linux-5.15.y 91d48252ad4b 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/07 06:56 linux-5.15.y 91d48252ad4b 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/07 05:56 linux-5.15.y 91d48252ad4b 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/07 03:29 linux-5.15.y 91d48252ad4b 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/06 22:52 linux-5.15.y 91d48252ad4b 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan corrupted report
2026/04/06 20:47 linux-5.15.y 91d48252ad4b 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/06 19:41 linux-5.15.y 91d48252ad4b 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2026/04/06 18:28 linux-5.15.y 91d48252ad4b 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
2025/08/28 18:10 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 corrupted report
2023/03/12 22:30 linux-5.15.y bbf9f29bac04 5205ef30 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf corrupted report
* Struck through repros no longer work on HEAD.