syzbot


Internal error in sys_getresgid

Status: upstream: reported C repro on 2025/08/08 14:57
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+dec558cad6ea585e60f4@syzkaller.appspotmail.com
First crash: 116d, last: 42d
Bug presence (2)
Date Name Commit Repro Result
2025/08/11 linux-5.15.y (ToT) c79648372d02 C [report] Internal error in sys_getresgid
2025/08/11 upstream (ToT) 8f5ae30d69d7 C Didn't crash
Last patch testing requests (1)
Created Duration User Patch Repo Result
2025/10/21 04:42 15m retest repro linux-5.15.y report log
Fix bisection attempts (2)
Created Duration User Patch Repo Result
2025/10/06 12:58 1m fix candidate upstream error job log
2025/08/13 04:00 3m fix candidate upstream error job log

Sample crash report:
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4191 Comm: syz.0.17 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : __do_sys_getresgid kernel/sys.c:832 [inline]
pc : __se_sys_getresgid kernel/sys.c:821 [inline]
pc : __arm64_sys_getresgid+0x204/0x4b0 kernel/sys.c:821
lr : __do_sys_getresgid kernel/sys.c:831 [inline]
lr : __se_sys_getresgid kernel/sys.c:821 [inline]
lr : __arm64_sys_getresgid+0x1e0/0x4b0 kernel/sys.c:821
sp : ffff8000201f7d10
x29: ffff8000201f7d20 x28: 0000000000000000 x27: 0000000000000000
x26: dfff800000000000 x25: 1fffe0001b21ea3c x24: 00000000fffffff2
x23: 0000000000000000 x22: ffff0000d90f51e4 x21: 0000000000000000
x20: 0000000000000000 x19: ffff0000d90f51c0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000081d8978 x15: 0000000000000000
x14: 0000000000000000 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000ffffffffffff
x8 : 0000000000000000 x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 __do_sys_getresgid kernel/sys.c:831 [inline]
 __se_sys_getresgid kernel/sys.c:821 [inline]
 __arm64_sys_getresgid+0x204/0x4b0 kernel/sys.c:821
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: d503229f 2a1f03f8 2a1f03e0 b8000957 (2a1803e1) 
---[ end trace 4eb0d7647613fa1c ]---
----------------
Code disassembly (best guess):
   0:	d503229f 	csdb
   4:	2a1f03f8 	mov	w24, wzr
   8:	2a1f03e0 	mov	w0, wzr
   c:	b8000957 	sttr	w23, [x10]
* 10:	2a1803e1 	mov	w1, w24 <-- trapping instruction

Crashes (472):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/08/10 10:20 linux-5.15.y c79648372d02 32a0e5ed .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/28 17:37 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/28 10:17 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/28 08:35 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/28 07:18 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/28 05:13 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/28 04:03 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/27 22:40 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/27 15:06 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/27 13:03 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/27 11:13 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/26 15:24 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/26 14:18 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/26 14:00 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/26 09:02 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/26 03:58 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/25 21:47 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/25 15:22 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/25 07:37 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/25 05:22 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/25 03:59 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/25 00:28 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/24 21:17 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/24 15:32 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/24 11:58 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/24 10:15 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/24 07:24 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/24 06:14 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/24 05:36 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/24 01:14 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/24 00:07 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/23 22:45 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/23 21:30 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/23 19:15 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/23 18:15 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/23 18:07 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/23 17:06 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/23 15:50 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/23 15:47 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/23 13:36 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/23 05:44 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/22 20:18 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/22 15:16 linux-5.15.y c79648372d02 bf27483f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
2025/08/08 14:57 linux-5.15.y c79648372d02 32a0e5ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_getresgid
* Struck through repros no longer work on HEAD.