watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [udevd:3659] Modules linked in: irq event stamp: 1112158 hardirqs last enabled at (1112157): [] kasan_quarantine_put+0xc4/0x200 mm/kasan/quarantine.c:231 hardirqs last disabled at (1112158): [] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227 softirqs last enabled at (1112126): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (1112124): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 CPU: 0 PID: 3659 Comm: udevd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __sanitizer_cov_trace_pc+0xa8/0xac kernel/kcov.c:216 lr : tomoyo_check_path_acl+0x2c/0x1c8 security/tomoyo/file.c:254 sp : ffff800021fd7370 x29: ffff800021fd7370 x28: ffff0000ca458330 x27: dfff800000000000 x26: 0000000000000000 x25: 0000000000000000 x24: ffff0000c82d0400 x23: dfff800000000000 x22: ffff800021fd7528 x21: 0000000000000000 x20: ffff0000c82d0400 x19: ffff800021fd74e0 x18: 0000000000000000 x17: 0000000000000000 x16: ffff80000a40a7a8 x15: 000000000000005c x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff80000a3f865c x8 : ffff0000d5c1d1c0 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000010 x2 : 0000000000000001 x1 : ffff0000c82d0400 x0 : ffff800021fd74e0 Call trace: __sanitizer_cov_trace_pc+0xa8/0xac kernel/kcov.c:216 tomoyo_check_acl+0x11c/0x378 security/tomoyo/domain.c:175 tomoyo_path_permission+0x164/0x310 security/tomoyo/file.c:586 tomoyo_check_open_permission+0x204/0x35c security/tomoyo/file.c:777 tomoyo_file_open+0x130/0x1a8 security/tomoyo/tomoyo.c:311 security_file_open+0x6c/0xac security/security.c:1669 do_dentry_open+0x29c/0xe9c fs/open.c:813 vfs_open+0x7c/0x90 fs/open.c:958 do_open fs/namei.c:3616 [inline] path_openat+0x1fc4/0x2718 fs/namei.c:3750 do_filp_open+0x184/0x368 fs/namei.c:3777 do_sys_openat2+0x134/0x3f4 fs/open.c:1255 do_sys_open fs/open.c:1271 [inline] __do_sys_openat fs/open.c:1287 [inline] __se_sys_openat fs/open.c:1282 [inline] __arm64_sys_openat+0x118/0x14c fs/open.c:1282 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x13c 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