------------[ cut here ]------------
strnlen: detected buffer overflow: 65 byte read of buffer size 64
WARNING: lib/string_helpers.c:1035 at __fortify_report+0x97/0xb0, CPU#0: syz-executor.0/4236
Modules linked in:
CPU: 0 UID: 0 PID: 4236 Comm: syz-executor.0 Not tainted 6.18.0-rc3-next-20251031 #1 PREEMPT(voluntary) 
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__fortify_report+0x97/0xb0
Code: 85 49 c7 c5 00 f5 02 85 4c 0f 45 e9 e8 02 67 20 ff 49 89 e8 4c 89 e2 4c 89 f6 4c 89 e9 48 c7 c7 80 f5 02 85 e8 4a 3c e6 fe 90 <0f> 0b 90 90 5b 5d 41 5c 41 5d 41 5e e9 a8 e5 74 02 e8 d3 62 5d ff
RSP: 0018:ffff888048e57a30 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffc900013f7000
RDX: 0000000000040000 RSI: ffffffff8139edce RDI: 0000000000000001
RBP: 0000000000000040 R08: 0000000000000001 R09: ffffed10091caefd
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
R13: ffffffff8502f500 R14: ffffffff8502fec0 R15: ffff888047f8e000
FS:  00007f51e061b700(0000) GS:ffff8880e53ed000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6129069000 CR3: 000000001e225000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __fortify_panic+0x23/0x30
 ext4_fill_super+0x368f/0xb910
 get_tree_bdev_flags+0x38a/0x620
 vfs_get_tree+0x93/0x340
 path_mount+0x720/0x2130
 __x64_sys_mount+0x293/0x310
 do_syscall_64+0xbf/0x390
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f51e30a704a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f51e061afa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000340 RCX: 00007f51e30a704a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f51e061b000
RBP: 00007f51e061b040 R08: 00007f51e061b040 R09: 0000000020000000
R10: 0000000001208c48 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f51e061b000 R15: 0000000020014d00
 </TASK>
irq event stamp: 4377
hardirqs last  enabled at (4385): [<ffffffff81543998>] __up_console_sem+0x78/0x80
hardirqs last disabled at (4396): [<ffffffff8154397d>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (4366): [<ffffffff813bc0ec>] handle_softirqs+0x50c/0x770
softirqs last disabled at (4165): [<ffffffff813bc484>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
kernel BUG at lib/string_helpers.c:1043!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 4236 Comm: syz-executor.0 Tainted: G        W           6.18.0-rc3-next-20251031 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__fortify_panic+0x24/0x30
Code: 90 90 90 90 90 90 f3 0f 1e fa 41 54 49 89 d4 55 48 89 f5 53 89 fb e8 ab 66 20 ff 0f b6 fb 4c 89 e2 48 89 ee e8 1d ff ff ff 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffff888048e57a60 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffc900013f7000
RDX: 0000000000040000 RSI: ffffffff8139edce RDI: 0000000000000001
RBP: 0000000000000040 R08: 0000000000000001 R09: ffffed10091caefd
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
R13: ffff88800de67400 R14: ffff88800de67400 R15: ffff888047f8e000
FS:  00007f51e061b700(0000) GS:ffff8880e53ed000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6129069000 CR3: 000000001e225000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 ext4_fill_super+0x368f/0xb910
 get_tree_bdev_flags+0x38a/0x620
 vfs_get_tree+0x93/0x340
 path_mount+0x720/0x2130
 __x64_sys_mount+0x293/0x310
 do_syscall_64+0xbf/0x390
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f51e30a704a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f51e061afa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000340 RCX: 00007f51e30a704a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f51e061b000
RBP: 00007f51e061b040 R08: 00007f51e061b040 R09: 0000000020000000
R10: 0000000001208c48 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f51e061b000 R15: 0000000020014d00
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__fortify_panic+0x24/0x30
Code: 90 90 90 90 90 90 f3 0f 1e fa 41 54 49 89 d4 55 48 89 f5 53 89 fb e8 ab 66 20 ff 0f b6 fb 4c 89 e2 48 89 ee e8 1d ff ff ff 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffff888048e57a60 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffc900013f7000
RDX: 0000000000040000 RSI: ffffffff8139edce RDI: 0000000000000001
RBP: 0000000000000040 R08: 0000000000000001 R09: ffffed10091caefd
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000041
R13: ffff88800de67400 R14: ffff88800de67400 R15: ffff888047f8e000
FS:  00007f51e061b700(0000) GS:ffff8880e53ed000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6129069000 CR3: 000000001e225000 CR4: 0000000000350ef0