Hello, syzbot found the following issue on: HEAD commit: 596764183be8 Add linux-next specific files for 20240129 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=142042f3e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=584144ad19f381aa dashboard link: https://syzkaller.appspot.com/bug?extid=39a72b995ba73633c1a7 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11844ba7e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15bd01efe80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/b647c038857b/disk-59676418.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/729e26c3ac55/vmlinux-59676418.xz kernel image: https://storage.googleapis.com/syzbot-assets/15aa5e287059/bzImage-59676418.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+39a72b995ba73633c1a7@xxxxxxxxxxxxxxxxxxxxxxxxx arg_start 7fffd9277efb arg_end 7fffd9277f14 env_start 7fffd9277f14 env_end 7fffd9277fdf binfmt ffffffff8d9c5c00 flags 80007fd ioctx_table 0000000000000000 owner ffff88802c0cda00 exe_file ffff88801ff60500 notifier_subscriptions 0000000000000000 numa_next_scan 0 numa_scan_offset 0 numa_scan_seq 0 tlb_flush_pending 0 def_flags: 0x0() ------------[ cut here ]------------ kernel BUG at mm/mmap.c:328! invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 PID: 5058 Comm: syz-executor310 Not tainted 6.8.0-rc1-next-20240129-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:validate_mm+0x3f3/0x4b0 mm/mmap.c:328 Code: 0f 84 a4 fd ff ff e9 47 ff ff ff e8 77 91 b9 ff 44 89 f2 89 de 48 c7 c7 e0 af 19 8b e8 56 69 9b ff 4c 89 ff e8 ce c4 fa ff 90 <0f> 0b e8 56 91 b9 ff 0f b6 15 1f dd b1 0d 31 ff 89 d6 88 14 24 e8 RSP: 0018:ffffc900035df958 EFLAGS: 00010282 RAX: 000000000000032a RBX: 000000000000000d RCX: ffffffff816e2f59 RDX: 0000000000000000 RSI: ffffffff816eb7e6 RDI: 0000000000000005 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: 00007fffd92ff000 R13: 0000000000000000 R14: 000000000000000e R15: ffff88802c6b8000 FS: 0000555557046380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f10ada208a0 CR3: 000000007b434000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> vma_merge+0x16a9/0x3d70 mm/mmap.c:1033 vma_merge_new_vma mm/mmap.c:2465 [inline] mmap_region+0x206b/0x2760 mm/mmap.c:2841 do_mmap+0x8ae/0xf10 mm/mmap.c:1380 vm_mmap_pgoff+0x1ab/0x3c0 mm/util.c:573 ksys_mmap_pgoff+0x425/0x5b0 mm/mmap.c:1426 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:93 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline] __x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:86 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f10ad9e52a9 Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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:00007fffd9276338 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fffd9276518 RCX: 00007f10ad9e52a9 RDX: 0000000000000001 RSI: 0000000000002000 RDI: 0000000020ffc000 RBP: 00007f10ada58610 R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fffd9276508 R14: 0000000000000001 R15: 0000000000000001 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:validate_mm+0x3f3/0x4b0 mm/mmap.c:328 Code: 0f 84 a4 fd ff ff e9 47 ff ff ff e8 77 91 b9 ff 44 89 f2 89 de 48 c7 c7 e0 af 19 8b e8 56 69 9b ff 4c 89 ff e8 ce c4 fa ff 90 <0f> 0b e8 56 91 b9 ff 0f b6 15 1f dd b1 0d 31 ff 89 d6 88 14 24 e8 RSP: 0018:ffffc900035df958 EFLAGS: 00010282 RAX: 000000000000032a RBX: 000000000000000d RCX: ffffffff816e2f59 RDX: 0000000000000000 RSI: ffffffff816eb7e6 RDI: 0000000000000005 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: 00007fffd92ff000 R13: 0000000000000000 R14: 000000000000000e R15: ffff88802c6b8000 FS: 0000555557046380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000664740 CR3: 000000007b434000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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
