------------[ cut here ]------------ WARNING: CPU: 1 PID: 7085 at lib/string_helpers.c:1029 __fortify_report+0x6c/0x74 lib/string_helpers.c:1029 strnlen: detected buffer overflow: 17 byte read of buffer size 16 Modules linked in: Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 1 PID: 7085 Comm: syz-executor.0 Not tainted 6.10.0-rc4-syzkaller #0 Hardware name: ARM-Versatile Express Call trace: [<818d4ad8>] (dump_backtrace) from [<818d4bd4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:82622d44 r5:00000000 r4:81fe14b4 [<818d4bbc>] (show_stack) from [<818f2204>] (__dump_stack lib/dump_stack.c:88 [inline]) [<818d4bbc>] (show_stack) from [<818f2204>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114) [<818f21b0>] (dump_stack_lvl) from [<818f2244>] (dump_stack+0x18/0x1c lib/dump_stack.c:123) r5:00000000 r4:8285fd18 [<818f222c>] (dump_stack) from [<818d567c>] (panic+0x120/0x358 kernel/panic.c:347) [<818d555c>] (panic) from [<80243dcc>] (check_panic_on_warn kernel/panic.c:240 [inline]) [<818d555c>] (panic) from [<80243dcc>] (print_tainted+0x0/0xa0 kernel/panic.c:235) r3:8260c5c4 r2:00000001 r1:81fca124 r0:81fd1d74 r7:8080f200 [<80243d58>] (check_panic_on_warn) from [<80243fc0>] (__warn+0x7c/0x180 kernel/panic.c:693) [<80243f44>] (__warn) from [<802442ac>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:726) r8:00000009 r7:8202eee4 r6:eb1c9db4 r5:840fe000 r4:00000000 [<802440c8>] (warn_slowpath_fmt) from [<8080f200>] (__fortify_report+0x6c/0x74 lib/string_helpers.c:1029) r10:8271c088 r9:00000004 r8:eb1c9ec3 r7:840a1c00 r6:20001340 r5:83754478 r4:840f1000 [<8080f194>] (__fortify_report) from [<818deec8>] (__fortify_panic+0x10/0x14 lib/string_helpers.c:1036) [<818deeb8>] (__fortify_panic) from [<8062a8e8>] (strnlen include/linux/fortify-string.h:235 [inline]) [<818deeb8>] (__fortify_panic) from [<8062a8e8>] (sized_strscpy include/linux/fortify-string.h:309 [inline]) [<818deeb8>] (__fortify_panic) from [<8062a8e8>] (ext4_ioctl_getlabel fs/ext4/ioctl.c:1154 [inline]) [<818deeb8>] (__fortify_panic) from [<8062a8e8>] (ext4_fileattr_get+0x0/0x78 fs/ext4/ioctl.c:1609) [<806287d4>] (__ext4_ioctl) from [<8062afe4>] (ext4_ioctl+0x10/0x14 fs/ext4/ioctl.c:1626) r10:840fe000 r9:00000004 r8:85104180 r7:20001340 r6:85104181 r5:00000000 r4:81009431 [<8062afd4>] (ext4_ioctl) from [<8051a27c>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<8062afd4>] (ext4_ioctl) from [<8051a27c>] (do_vfs_ioctl fs/ioctl.c:861 [inline]) [<8062afd4>] (ext4_ioctl) from [<8051a27c>] (__do_sys_ioctl fs/ioctl.c:905 [inline]) [<8062afd4>] (ext4_ioctl) from [<8051a27c>] (sys_ioctl+0x134/0xda4 fs/ioctl.c:893) [<8051a148>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xeb1c9fa8 to 0xeb1c9ff0) 9fa0: 00000000 00000000 00000004 81009431 20001340 00000000 9fc0: 00000000 00000000 001542c8 00000036 7ec3e336 7ec3e337 003d0f00 76b290fc 9fe0: 76b28f08 76b28ef8 00016f30 000516d0 r10:00000036 r9:840fe000 r8:8020029c r7:00000036 r6:001542c8 r5:00000000 r4:00000000 Rebooting in 86400 seconds..