Hello, syzbot found the following issue on: HEAD commit: e9565e23cd89 Merge tag 'sched_ext-for-6.15-rc6-fixes' of g.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=15ee8f68580000 kernel config: https://syzkaller.appspot.com/x/.config?x=5929ac65be9baf3c dashboard link: https://syzkaller.appspot.com/bug?extid=4125590f2a9f5b3cdf43 compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12cb6af4580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1301f670580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/88b9a7ce7297/disk-e9565e23.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6ef1e04f11ea/vmlinux-e9565e23.xz kernel image: https://storage.googleapis.com/syzbot-assets/dfb61d29ee21/bzImage-e9565e23.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4125590f2a9f5b3cdf43@xxxxxxxxxxxxxxxxxxxxxxxxx WARNING: The mand mount option has been deprecated and and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5827 at fs/overlayfs/xattrs.c:136 ovl_listxattr+0x3a3/0x400 fs/overlayfs/xattrs.c:136 Modules linked in: CPU: 0 UID: 0 PID: 5827 Comm: syz-executor209 Not tainted 6.15.0-rc6-syzkaller-00047-ge9565e23cd89 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:ovl_listxattr+0x3a3/0x400 fs/overlayfs/xattrs.c:136 Code: d5 f3 fe e9 47 ff ff ff e8 da 06 94 fe 4c 89 f8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 be 06 94 fe 90 <0f> 0b 90 49 c7 c7 fb ff ff ff eb d7 e8 ac 06 94 fe 90 0f 0b 90 e9 RSP: 0018:ffffc9000440fdb8 EFLAGS: 00010293 RAX: ffffffff832bea42 RBX: ffff888020aec700 RCX: ffff88802faf5a00 RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000012 RBP: ffff88823bf5cf01 R08: ffff8880335691d3 R09: 1ffff110066ad23a R10: dffffc0000000000 R11: ffffed10066ad23b R12: ffffffffffffffff R13: 0000000000000012 R14: ffff8880687d7820 R15: 0000000000000011 FS: 000055558015f380(0000) GS:ffff8881260fb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001000 CR3: 000000007f130000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> vfs_listxattr fs/xattr.c:493 [inline] listxattr+0x10d/0x2a0 fs/xattr.c:924 filename_listxattr fs/xattr.c:958 [inline] path_listxattrat+0x179/0x390 fs/xattr.c:988 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcb6cb2da39 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdbfef0558 EFLAGS: 00000246 ORIG_RAX: 00000000000000c3 RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fcb6cb2da39 RDX: 00000000000000b6 RSI: 0000200000000200 RDI: 00002000000001c0 RBP: 0000200000000180 R08: 0000000000000006 R09: 0000000000000006 R10: 0000200000000300 R11: 0000000000000246 R12: 00007fcb6cb7c17c R13: 00007fcb6cb77082 R14: 0000000000000001 R15: 0000000000000001 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
