Hello, syzbot found the following issue on: HEAD commit: 367b5c3d53e5 Add linux-next specific files for 20240816 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=12489105980000 kernel config: https://syzkaller.appspot.com/x/.config?x=61ba6f3b22ee5467 dashboard link: https://syzkaller.appspot.com/bug?extid=ce6029250d7fd4d0476d compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0b1b4e3cad3c/disk-367b5c3d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/5bb090f7813c/vmlinux-367b5c3d.xz kernel image: https://storage.googleapis.com/syzbot-assets/6674cb0709b1/bzImage-367b5c3d.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ce6029250d7fd4d0476d@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 0 PID: 11298 at mm/zswap.c:1700 zswap_swapoff+0x11b/0x2b0 mm/zswap.c:1700 Modules linked in: CPU: 0 UID: 0 PID: 11298 Comm: swapoff Not tainted 6.11.0-rc3-next-20240816-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:zswap_swapoff+0x11b/0x2b0 mm/zswap.c:1700 Code: 74 05 e8 78 73 07 00 4b 83 7c 35 00 00 75 15 e8 1b bd 9e ff 48 ff c5 49 83 c6 50 83 7c 24 0c 17 76 9b eb 24 e8 06 bd 9e ff 90 <0f> 0b 90 eb e5 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 7c 90 48 8b 3c RSP: 0018:ffffc9000302fa38 EFLAGS: 00010293 RAX: ffffffff81f4d66a RBX: dffffc0000000000 RCX: ffff88802c19bc00 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff888015986248 RBP: 0000000000000000 R08: ffffffff81f4d620 R09: 1ffffffff1d476ac R10: dffffc0000000000 R11: fffffbfff1d476ad R12: dffffc0000000000 R13: ffff888015986200 R14: 0000000000000048 R15: 0000000000000002 FS: 00007f9e628a5380(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30f15ff8 CR3: 000000006c5f0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __do_sys_swapoff mm/swapfile.c:2837 [inline] __se_sys_swapoff+0x4653/0x4cf0 mm/swapfile.c:2706 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9e629feb37 Code: 73 01 c3 48 8b 0d f1 52 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a8 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 52 0d 00 f7 d8 64 89 01 48 RSP: 002b:00007fff17734f68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a8 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9e629feb37 RDX: 00007f9e62a9e7e8 RSI: 00007f9e62b9beed RDI: 0000563090942a20 RBP: 0000563090942a20 R08: 0000000000000000 R09: 77872e07ed164f94 R10: 000000000000001f R11: 0000000000000246 R12: 00007fff17735188 R13: 00005630909422a0 R14: 0000563073724169 R15: 00007f9e62bdda80 </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 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
