Hello, syzbot found the following issue on: HEAD commit: a47fc304d2b6 Add linux-next specific files for 20230831 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=16502ddba80000 kernel config: https://syzkaller.appspot.com/x/.config?x=6ecd2a74f20953b9 dashboard link: https://syzkaller.appspot.com/bug?extid=b591856e0f0139f83023 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=120e7d70680000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1523f9c0680000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/b2e8f4217527/disk-a47fc304.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ed6cdcc09339/vmlinux-a47fc304.xz kernel image: https://storage.googleapis.com/syzbot-assets/bd9b2475bf5a/bzImage-a47fc304.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b591856e0f0139f83023@xxxxxxxxxxxxxxxxxxxxxxxxx vma ffff888077381a00 start 0000000020c2a000 end 0000000021000000 mm ffff8880258a8980 prot 25 anon_vma 0000000000000000 vm_ops 0000000000000000 pgoff 20c2a file 0000000000000000 private_data 0000000000000000 flags: 0x8100077(read|write|exec|mayread|maywrite|mayexec|account|softdirty) ------------[ cut here ]------------ kernel BUG at include/linux/mm.h:733! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5040 Comm: syz-executor418 Not tainted 6.5.0-next-20230831-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:vma_assert_write_locked include/linux/mm.h:733 [inline] RIP: 0010:vma_assert_write_locked include/linux/mm.h:729 [inline] RIP: 0010:vma_replace_policy+0x406/0x4e0 mm/mempolicy.c:783 Code: ff 48 89 ef e8 db 78 ff ff e9 83 fe ff ff e8 d1 7c ad ff 4c 89 e7 e8 a9 86 eb ff 0f 0b e8 c2 7c ad ff 48 89 df e8 fa 83 eb ff <0f> 0b e8 b3 7c ad ff 41 89 ec e9 58 fe ff ff 48 c7 c7 d0 55 ce 8e RSP: 0018:ffffc9000395fc58 EFLAGS: 00010282 RAX: 000000000000011b RBX: ffff888077381a00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816b9a92 RDI: 0000000000000005 RBP: ffff888014a7e030 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: 0000000000000015 R13: 0000000000000016 R14: 0000000000000001 R15: 0000000021000000 FS: 0000555556684380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd277b0020 CR3: 00000000773e1000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> mbind_range+0x37c/0x530 mm/mempolicy.c:855 do_mbind+0x583/0xa00 mm/mempolicy.c:1345 kernel_mbind+0x1d4/0x1f0 mm/mempolicy.c:1502 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb959069369 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:00007ffd276bed98 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed RAX: ffffffffffffffda RBX: 00007ffd276bef78 RCX: 00007fb959069369 RDX: 0000000000000004 RSI: 0000000000c00000 RDI: 0000000020400000 RBP: 00007fb9590dc610 R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd276bef68 R14: 0000000000000001 R15: 0000000000000001 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:vma_assert_write_locked include/linux/mm.h:733 [inline] RIP: 0010:vma_assert_write_locked include/linux/mm.h:729 [inline] RIP: 0010:vma_replace_policy+0x406/0x4e0 mm/mempolicy.c:783 Code: ff 48 89 ef e8 db 78 ff ff e9 83 fe ff ff e8 d1 7c ad ff 4c 89 e7 e8 a9 86 eb ff 0f 0b e8 c2 7c ad ff 48 89 df e8 fa 83 eb ff <0f> 0b e8 b3 7c ad ff 41 89 ec e9 58 fe ff ff 48 c7 c7 d0 55 ce 8e RSP: 0018:ffffc9000395fc58 EFLAGS: 00010282 RAX: 000000000000011b RBX: ffff888077381a00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816b9a92 RDI: 0000000000000005 RBP: ffff888014a7e030 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: 0000000000000015 R13: 0000000000000016 R14: 0000000000000001 R15: 0000000021000000 FS: 0000555556684380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd277b0020 CR3: 00000000773e1000 CR4: 00000000003506e0 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 bug is already fixed, 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 bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
