building syzkaller on f3921d4d63f97d1f1fb49a69ea85744bb7ef184b...
fetching kernel...
checked out kernel commit aabd761612dbeb7d40750d485da219d11433718a ("Linux 5.15.215", 2026-08-07 08:07:31 +0200 +0200)
cleaning kernel...
building kernel...
kernel built successfully with compiler Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
testing patch...
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: 0 PID: 4057 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
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 : ffff80001ea57c80
x29: ffff80001ea57d20 x28: 0000000000400100 x27: 00000000fffffff2
x26: 0000000000000f7f x25: 0000000000000000 x24: 0000ffffc4d37081
x23: ffff0000db1ce000 x22: 0000ffffc4d38000 x21: dfff800000000000
x20: 00000000ffffff7f x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008979fbc x15: 0000000000000000
x14: 0000000000000000 x13: 1ffff0000287402b x12: 0000000097863b1e
x11: ff80800008979f98 x10: 0000ffffffffffff x9 : 0000ffffc4d38000
x8 : 0000ffffc4d38000 x7 : ffff800008762ed0 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+0x78/0x1d0 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 4351181262f23427 ]---
----------------
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 '10.128.10.27' (ED25519) to the list of known hosts.
1970/01/01 00:00:30 ignoring optional flag "type"="gce"
1970/01/01 00:00:30 parsed 1 programs
[   30.420789][ T4057] cgroup: Unknown subsys name 'net'
[   30.478512][ T4057] Internal error: Oops - BTI: 0000000036000001 [#1] PREEMPT SMP
[   30.479860][ T4057] Modules linked in:
[   30.480551][ T4057] CPU: 0 PID: 4057 Comm: syz-executor Not tainted syzkaller #0
[   30.481698][ T4057] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
[   30.483637][ T4057] pstate: 42400405 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=jc)
[   30.485138][ T4057] pc : __arm64_sys_mount+0x2f0/0x5f8
[   30.486131][ T4057] lr : __arm64_sys_mount+0x2cc/0x5f8
[   30.487064][ T4057] sp : ffff80001ea57c80
[   30.487828][ T4057] x29: ffff80001ea57d20 x28: 0000000000400100 x27: 00000000fffffff2
[   30.489173][ T4057] x26: 0000000000000f7f x25: 0000000000000000 x24: 0000ffffc4d37081
[   30.490549][ T4057] x23: ffff0000db1ce000 x22: 0000ffffc4d38000 x21: dfff800000000000
[   30.491977][ T4057] x20: 00000000ffffff7f x19: 0000000000000000 x18: 0000000000000000
[   30.493400][ T4057] x17: 0000000000000000 x16: ffff800008979fbc x15: 0000000000000000
[   30.494811][ T4057] x14: 0000000000000000 x13: 1ffff0000287402b x12: 0000000097863b1e
[   30.496306][ T4057] x11: ff80800008979f98 x10: 0000ffffffffffff x9 : 0000ffffc4d38000
[   30.497686][ T4057] x8 : 0000ffffc4d38000 x7 : ffff800008762ed0 x6 : 0000000000000000
[   30.499024][ T4057] x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
[   30.500712][ T4057] x2 : 0000000000000008 x1 : 0000000000000001 x0 : 0000000000000000
[   30.502268][ T4057] Call trace:
[   30.502913][ T4057]  __arm64_sys_mount+0x2f0/0x5f8
[   30.503878][ T4057]  invoke_syscall+0x98/0x28c
[   30.504695][ T4057]  el0_svc_common+0x13c/0x258
[   30.505514][ T4057]  do_el0_svc+0x5c/0x140
[   30.506207][ T4057]  el0_svc+0x78/0x1d0
[   30.506918][ T4057]  el0t_64_sync_handler+0xcc/0xe4
[   30.507755][ T4057]  el0t_64_sync+0x1a0/0x1a4
[   30.508609][ T4057] Code: d503229f 2a1903fb 2a1903e0 38400933 (2a1b03e1) 
[   30.509852][ T4057] ---[ end trace 4351181262f23427 ]---
[   30.712525][ T4057] Kernel panic - not syncing: Oops - BTI: Fatal exception
[   30.713748][ T4057] SMP: stopping secondary CPUs
[   30.714562][ T4057] Kernel Offset: disabled
[   30.715242][ T4057] CPU features: 0xa,000003c1,7d33ffd9
[   30.716095][ T4057] Memory Limit: none
[   30.906931][ T4057] Rebooting in 86400 seconds..