syzbot


Internal error in sys_capget

Status: upstream: reported on 2025/08/09 00:01
Reported-by: syzbot+9d9ea7d0e032911ebdd9@syzkaller.appspotmail.com
First crash: 15d, last: 12h10m

Sample crash report:
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4156 Comm: syz.1.8 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_capget kernel/capability.c:159 [inline]
pc : __se_sys_capget kernel/capability.c:148 [inline]
pc : __arm64_sys_capget+0x1fc/0x870 kernel/capability.c:148
lr : __do_sys_capget kernel/capability.c:159 [inline]
lr : __se_sys_capget kernel/capability.c:148 [inline]
lr : __arm64_sys_capget+0x1d8/0x870 kernel/capability.c:148
sp : ffff80001f687be0
x29: ffff80001f687d20 x28: ffff700003ed0f88 x27: 1fffe00018c18004
x26: dfff800000000000 x25: 00000020feaffd00 x24: ffff80001f687c40
x23: 00000000fffffff2 x22: 0000000000000000 x21: ffff0000c60c0024
x20: ffff0000c60c0000 x19: 0000000020000000 x18: 0000000000000000
x17: 0000000000000002 x16: ffff8000081ade9c x15: 0000000020080522
x14: 0000000000ff0100 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000020feaffd x9 : 0000ffffffffffff
x8 : 0000000020feaffd x7 : ffff800008750ed4 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 __do_sys_capget kernel/capability.c:159 [inline]
 __se_sys_capget kernel/capability.c:148 [inline]
 __arm64_sys_capget+0x1fc/0x870 kernel/capability.c:148
 __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 2a1f03f7 2a1f03e0 b8400956 (2a1703e1) 
---[ end trace f10f2b7f03d7a7f1 ]---
----------------
Code disassembly (best guess):
   0:	d503229f 	csdb
   4:	2a1f03f7 	mov	w23, wzr
   8:	2a1f03e0 	mov	w0, wzr
   c:	b8400956 	ldtr	w22, [x10]
* 10:	2a1703e1 	mov	w1, w23 <-- trapping instruction

Crashes (20):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/08/23 21:33 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_capget
2025/08/18 19:43 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/18 19:41 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/18 18:34 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/18 18:34 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/17 20:34 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/17 20:33 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/17 11:25 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/17 11:23 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/16 05:25 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/16 05:23 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/16 05:20 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/16 05:18 linux-5.15.y c79648372d02 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 Internal error in sys_capget
2025/08/10 01:18 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_capget
2025/08/09 06:04 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_capget
2025/08/09 06:04 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_capget
2025/08/08 16:48 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_capget
2025/08/08 16:47 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_capget
2025/08/08 16:47 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_capget
2025/08/08 16:46 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_capget
* Struck through repros no longer work on HEAD.