05-Oct-2026 04:56:38: building syzkaller on d7906effc263366a8b067258cec67072b29aa5e0...
05-Oct-2026 04:57:12: fetching kernel...
05-Oct-2026 04:57:16: checked out kernel commit a051a4bf909f76f470ccb3761ee0cf6e2395616e ("Linux 5.15.222", 2026-10-03 12:26:49 +0200 +0200)
05-Oct-2026 04:57:16: cleaning kernel...
05-Oct-2026 04:57:17: building kernel...
05-Oct-2026 05:04:24: kernel built successfully with compiler Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
05-Oct-2026 05:04:24: testing patch...
05-Oct-2026 05:09:52: aggregating test results failed: Internal error in sys_mount

cgroup: Unknown subsys name 'net'
Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4057 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
pc : copy_mount_options fs/namespace.c:3255 [inline]
pc : __do_sys_mount fs/namespace.c:3580 [inline]
pc : __se_sys_mount fs/namespace.c:3562 [inline]
pc : __arm64_sys_mount+0x2f0/0x5f8 fs/namespace.c:3562
lr : copy_mount_options fs/namespace.c:3255 [inline]
lr : __do_sys_mount fs/namespace.c:3580 [inline]
lr : __se_sys_mount fs/namespace.c:3562 [inline]
lr : __arm64_sys_mount+0x2cc/0x5f8 fs/namespace.c:3562
sp : ffff80001f817c80
x29: ffff80001f817d20 x28: 0000000000400100 x27: 00000000fffffff2
x26: 0000000000000e9f x25: 0000000000000000 x24: 0000fffff8818161
x23: ffff0000cadf0000 x22: 0000fffff8819000 x21: dfff800000000000
x20: 00000000fffffe9f x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80000897dfb4 x15: 0000000000000000
x14: 1ffff0000287802b x13: dfff800000000000 x12: 0000000082d2c423
x11: ff8080000897df90 x10: 0000ffffffffffff x9 : 0000fffff8819000
x8 : 0000fffff8819000 x7 : ffff800008766a24 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 copy_mount_options fs/namespace.c:3255 [inline]
 __do_sys_mount fs/namespace.c:3580 [inline]
 __se_sys_mount fs/namespace.c:3562 [inline]
 __arm64_sys_mount+0x2f0/0x5f8 fs/namespace.c:3562
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x28c arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x5c/0x140 arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d4 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 2a1903fb 2a1903e0 38400933 (2a1b03e1) 
---[ end trace b4a705ad679b1359 ]---
----------------
Code disassembly (best guess):
   0:	d503229f 	csdb
   4:	2a1903fb 	mov	w27, w25
   8:	2a1903e0 	mov	w0, w25
   c:	38400933 	ldtrb	w19, [x9]
* 10:	2a1b03e1 	mov	w1, w27 <-- trapping instruction


Warning: Permanently added '10.128.1.173' (ED25519) to the list of known hosts.
1970/01/01 00:00:29 parsed 1 programs
[   31.197215][ T4057] cgroup: Unknown subsys name 'net'
[   31.287573][ T4057] Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
[   31.288877][ T4057] Modules linked in:
[   31.289589][ T4057] CPU: 1 PID: 4057 Comm: syz-executor Not tainted syzkaller #0
[   31.290893][ T4057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
[   31.292680][ T4057] pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
[   31.294044][ T4057] pc : __arm64_sys_mount+0x2f0/0x5f8
[   31.294998][ T4057] lr : __arm64_sys_mount+0x2cc/0x5f8
[   31.295982][ T4057] sp : ffff80001f817c80
[   31.296771][ T4057] x29: ffff80001f817d20 x28: 0000000000400100 x27: 00000000fffffff2
[   31.298353][ T4057] x26: 0000000000000e9f x25: 0000000000000000 x24: 0000fffff8818161
[   31.299943][ T4057] x23: ffff0000cadf0000 x22: 0000fffff8819000 x21: dfff800000000000
[   31.301413][ T4057] x20: 00000000fffffe9f x19: 0000000000000000 x18: 0000000000000000
[   31.302865][ T4057] x17: 0000000000000000 x16: ffff80000897dfb4 x15: 0000000000000000
[   31.304408][ T4057] x14: 1ffff0000287802b x13: dfff800000000000 x12: 0000000082d2c423
[   31.305972][ T4057] x11: ff8080000897df90 x10: 0000ffffffffffff x9 : 0000fffff8819000
[   31.307495][ T4057] x8 : 0000fffff8819000 x7 : ffff800008766a24 x6 : 0000000000000000
[   31.308991][ T4057] x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
[   31.310491][ T4057] x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
[   31.312064][ T4057] Call trace:
[   31.312679][ T4057]  __arm64_sys_mount+0x2f0/0x5f8
[   31.313601][ T4057]  invoke_syscall+0x98/0x28c
[   31.314594][ T4057]  el0_svc_common+0x13c/0x258
[   31.315570][ T4057]  do_el0_svc+0x5c/0x140
[   31.316454][ T4057]  el0_svc+0x78/0x1d4
[   31.317269][ T4057]  el0t_64_sync_handler+0xcc/0xe4
[   31.318228][ T4057]  el0t_64_sync+0x1a0/0x1a4
[   31.319198][ T4057] Code: d503229f 2a1903fb 2a1903e0 38400933 (2a1b03e1) 
[   31.320417][ T4057] ---[ end trace b4a705ad679b1359 ]---
[   31.501518][ T4057] Kernel panic - not syncing: Oops - BTI: Fatal exception
[   31.502725][ T4057] SMP: stopping secondary CPUs
[   31.503574][ T4057] Kernel Offset: disabled
[   31.504316][ T4057] CPU features: 0xa,000003c1,7d33ffd9
[   31.505272][ T4057] Memory Limit: none
[   31.687648][ T4057] Rebooting in 86400 seconds..