#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git bugfix/syzbot
On 4/7/25 20:10, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: a1b5bd45d4ee Merge tag 'usb-6.15-rc1' of git://git.kernel... > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=174ffc3f980000 > kernel config: https://syzkaller.appspot.com/x/.config?x=6fe3b5e6a2cb1cc2 > dashboard link: https://syzkaller.appspot.com/bug?extid=8b376a77b2f364097fbe > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) > 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=148427cf980000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17c9f7b0580000 > > Downloadable assets: > disk image (non-bootable): > https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-a1b5bd45.raw.xz > vmlinux: > https://storage.googleapis.com/syzbot-assets/8b14e02f603d/vmlinux-a1b5bd45.xz > kernel image: > https://storage.googleapis.com/syzbot-assets/cc06cac05b38/bzImage-a1b5bd45.xz > mounted in repro: > https://storage.googleapis.com/syzbot-assets/697f78a4edc0/mount_0.gz > fsck result: failed (log: > https://syzkaller.appspot.com/x/fsck.log?x=10ffca74580000) > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+8b376a77b2f364097...@syzkaller.appspotmail.com > > ------------[ cut here ]------------ > kernel BUG at fs/f2fs/f2fs.h:2521! > Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI > CPU: 0 UID: 0 PID: 5312 Comm: syz-executor407 Not tainted > 6.14.0-syzkaller-12886-ga1b5bd45d4ee #0 PREEMPT(full) > Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS > 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 > RIP: 0010:dec_valid_block_count+0x3b2/0x3c0 fs/f2fs/f2fs.h:2521 > Code: 8a 01 fe e9 80 fd ff ff e8 db 64 97 fd 48 c7 c7 60 6e 31 8f 4c 89 e6 48 > 89 da e8 39 aa 14 01 e9 73 fe ff ff e8 bf 64 97 fd 90 <0f> 0b 66 66 66 2e 0f > 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 > RSP: 0018:ffffc9000d39f078 EFLAGS: 00010293 > RAX: ffffffff842bf2c1 RBX: 00000000fffffcda RCX: ffff88801f41a440 > RDX: 0000000000000000 RSI: 00000000000003fa RDI: 00000000000000d4 > RBP: 1ffff110082999f4 R08: ffffffff842bef72 R09: fffff52001a73e00 > R10: dffffc0000000000 R11: fffff52001a73e00 R12: ffff8880414ccfa4 > R13: dffffc0000000000 R14: ffff8880414cc000 R15: 00000000000003fa > FS: 00007f5c4fc216c0(0000) GS:ffff88808c599000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 00007f5c4fc00d58 CR3: 0000000043b00000 CR4: 0000000000352ef0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > Call Trace: > <TASK> > f2fs_truncate_data_blocks_range+0xc8c/0x11a0 fs/f2fs/file.c:695 > truncate_dnode+0x417/0x740 fs/f2fs/node.c:973 > truncate_nodes+0x3ec/0xf50 fs/f2fs/node.c:1014 > f2fs_truncate_inode_blocks+0x8e3/0x1370 fs/f2fs/node.c:1197 > f2fs_do_truncate_blocks+0x840/0x12b0 fs/f2fs/file.c:810 > f2fs_truncate_blocks+0x10d/0x300 fs/f2fs/file.c:838 > f2fs_truncate+0x417/0x720 fs/f2fs/file.c:888 > f2fs_setattr+0xc4f/0x12f0 fs/f2fs/file.c:1112 > notify_change+0xbca/0xe90 fs/attr.c:552 > do_truncate+0x222/0x310 fs/open.c:65 > handle_truncate fs/namei.c:3466 [inline] > do_open fs/namei.c:3849 [inline] > path_openat+0x2e4f/0x35d0 fs/namei.c:4004 > do_filp_open+0x284/0x4e0 fs/namei.c:4031 > do_sys_openat2+0x12b/0x1d0 fs/open.c:1429 > do_sys_open fs/open.c:1444 [inline] > __do_sys_creat fs/open.c:1522 [inline] > __se_sys_creat fs/open.c:1516 [inline] > __x64_sys_creat+0x124/0x170 fs/open.c:1516 > do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] > do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 > entry_SYSCALL_64_after_hwframe+0x77/0x7f > RIP: 0033:0x7f5c4fc6c839 > Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 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 b0 ff ff ff f7 d8 64 89 01 48 > RSP: 002b:00007f5c4fc21218 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 > RAX: ffffffffffffffda RBX: 00007f5c4fcf8608 RCX: 00007f5c4fc6c839 > RDX: 00007f5c4fc6c839 RSI: 0000000000000009 RDI: 0000200000000080 > RBP: 00007f5c4fcf8600 R08: 0000000000000000 R09: 0000000000000000 > R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5c4fcc58f4 > R13: 0000200000000100 R14: 0031656c69662f2e R15: 0000200000000080 > </TASK> > Modules linked in: > ---[ end trace 0000000000000000 ]--- > RIP: 0010:dec_valid_block_count+0x3b2/0x3c0 fs/f2fs/f2fs.h:2521 > Code: 8a 01 fe e9 80 fd ff ff e8 db 64 97 fd 48 c7 c7 60 6e 31 8f 4c 89 e6 48 > 89 da e8 39 aa 14 01 e9 73 fe ff ff e8 bf 64 97 fd 90 <0f> 0b 66 66 66 2e 0f > 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 > RSP: 0018:ffffc9000d39f078 EFLAGS: 00010293 > RAX: ffffffff842bf2c1 RBX: 00000000fffffcda RCX: ffff88801f41a440 > RDX: 0000000000000000 RSI: 00000000000003fa RDI: 00000000000000d4 > RBP: 1ffff110082999f4 R08: ffffffff842bef72 R09: fffff52001a73e00 > R10: dffffc0000000000 R11: fffff52001a73e00 R12: ffff8880414ccfa4 > R13: dffffc0000000000 R14: ffff8880414cc000 R15: 00000000000003fa > FS: 00007f5c4fc216c0(0000) GS:ffff88808c599000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 00007f5c4fc00d58 CR3: 0000000043b00000 CR4: 0000000000352ef0 > 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 syzkal...@googlegroups.com. > > 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 _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
