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syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: C6A964001E X-Stat-Signature: fkg3p8qaaoi4iba1m413sbse7kfn9eup X-HE-Tag: 1751886153-658182 X-HE-Meta: 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https://syzkaller.appspot.com/bug?extid=3de83a9efcca3f0412ee compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16ecb3d4580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=153af770580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/ff731adf5dfa/disk-8d6c5833.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/5c7a3c57e0a1/vmlinux-8d6c5833.xz kernel image: https://storage.googleapis.com/syzbot-assets/2f90e7c18574/bzImage-8d6c5833.xz The issue was bisected to: commit df43ee1b368c791b7042504d2aa90893569b9034 Author: Christian Brauner Date: Wed Jul 2 09:23:55 2025 +0000 anon_inode: rework assertions bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14b373d4580000 final oops: https://syzkaller.appspot.com/x/report.txt?x=16b373d4580000 console output: https://syzkaller.appspot.com/x/log.txt?x=12b373d4580000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3de83a9efcca3f0412ee@syzkaller.appspotmail.com Fixes: df43ee1b368c ("anon_inode: rework assertions") ------------[ cut here ]------------ WARNING: fs/exec.c:119 at path_noexec+0x1af/0x200 fs/exec.c:118, CPU#1: syz-executor260/5835 Modules linked in: CPU: 1 UID: 0 PID: 5835 Comm: syz-executor260 Not tainted 6.16.0-rc4-next-20250703-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:path_noexec+0x1af/0x200 fs/exec.c:118 Code: 02 31 ff 48 89 de e8 f0 b1 89 ff d1 eb eb 07 e8 07 ad 89 ff b3 01 89 d8 5b 41 5e 41 5f 5d c3 cc cc cc cc cc e8 f2 ac 89 ff 90 <0f> 0b 90 e9 48 ff ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c a6 RSP: 0018:ffffc90003eefbd8 EFLAGS: 00010293 RAX: ffffffff8235f22e RBX: ffff888072be0940 RCX: ffff88807763bc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000080000 R08: ffff88807763bc00 R09: 0000000000000003 R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000011 R13: 1ffff920007ddf90 R14: 0000000000000000 R15: dffffc0000000000 FS: 000055556832d380(0000) GS:ffff888125d1e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f21e34810d0 CR3: 00000000718a8000 CR4: 00000000003526f0 Call Trace: do_mmap+0xa43/0x10d0 mm/mmap.c:472 vm_mmap_pgoff+0x31b/0x4c0 mm/util.c:579 ksys_mmap_pgoff+0x51f/0x760 mm/mmap.c:607 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f21e340a9f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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:00007ffd23ca3468 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f21e340a9f9 RDX: 0000000000000000 RSI: 0000000000004000 RDI: 0000200000ff9000 RBP: 00007f21e347d5f0 R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000001 R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 --- 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@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection 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