Hello, syzbot found the following issue on: HEAD commit: e62252bc55b6 Merge tag 'pci-v6.3-fixes-2' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=138a91cfc80000 kernel config: https://syzkaller.appspot.com/x/.config?x=759d5e665e47a55 dashboard link: https://syzkaller.appspot.com/bug?extid=80d8e23d89e3b1222382 compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/c93bfdacd206/disk-e62252bc.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ef07a6bc5904/vmlinux-e62252bc.xz kernel image: https://storage.googleapis.com/syzbot-assets/3da9fbe1f1c4/bzImage-e62252bc.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+80d8e23d89e3b1222382@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8399 at fs/udf/udfdecl.h:123 udf_add_free_space fs/udf/balloc.c:125 [inline] WARNING: CPU: 1 PID: 8399 at fs/udf/udfdecl.h:123 udf_table_free_blocks fs/udf/balloc.c:407 [inline] WARNING: CPU: 1 PID: 8399 at fs/udf/udfdecl.h:123 udf_free_blocks+0x1d56/0x23c0 fs/udf/balloc.c:685 Modules linked in: CPU: 1 PID: 8399 Comm: syz-executor.0 Not tainted 6.3.0-rc6-syzkaller-00034-ge62252bc55b6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 RIP: 0010:udf_updated_lvid fs/udf/udfdecl.h:121 [inline] RIP: 0010:udf_add_free_space fs/udf/balloc.c:125 [inline] RIP: 0010:udf_table_free_blocks fs/udf/balloc.c:407 [inline] RIP: 0010:udf_free_blocks+0x1d56/0x23c0 fs/udf/balloc.c:685 Code: 00 00 e8 2d df e5 fe 48 8b 9c 24 70 01 00 00 48 85 db 74 07 e8 6b 1e 90 fe eb b7 e8 64 1e 90 fe e9 4a e7 ff ff e8 5a 1e 90 fe <0f> 0b e9 47 ef ff ff 89 d9 80 e1 07 fe c1 38 c1 0f 8c 74 e3 ff ff RSP: 0018:ffffc90012bf68e0 EFLAGS: 00010287 RAX: ffffffff82fa4a86 RBX: 0000000063746800 RCX: 0000000000040000 RDX: ffffc90004262000 RSI: 0000000000001527 RDI: 0000000000001528 RBP: ffffc90012bf6af0 R08: ffffffff82fa39c7 R09: fffffbfff1ca68fe R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802b8c0cc0 R13: dffffc0000000000 R14: ffff88803acaa01c R15: ffff88807609a000 FS: 00007f37337fe700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f372b4dd718 CR3: 000000002ae2c000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> udf_discard_prealloc+0x560/0x870 fs/udf/truncate.c:151 udf_map_block+0x3ce/0x4ff0 fs/udf/inode.c:448 __udf_get_block+0x126/0x410 fs/udf/inode.c:464 __block_write_begin_int+0x548/0x1a50 fs/buffer.c:2034 __block_write_begin fs/buffer.c:2084 [inline] block_write_begin+0x9c/0x1f0 fs/buffer.c:2145 udf_write_begin+0x10a/0x190 fs/udf/inode.c:265 generic_perform_write+0x300/0x5e0 mm/filemap.c:3926 __generic_file_write_iter+0x17a/0x400 mm/filemap.c:4054 udf_file_write_iter+0x2fc/0x660 fs/udf/file.c:115 do_iter_write+0x6ea/0xc50 fs/read_write.c:861 iter_file_splice_write+0x843/0xfe0 fs/splice.c:778 do_splice_from fs/splice.c:856 [inline] direct_splice_actor+0xe7/0x1c0 fs/splice.c:1022 splice_direct_to_actor+0x4c4/0xbd0 fs/splice.c:977 do_splice_direct+0x283/0x3d0 fs/splice.c:1065 do_sendfile+0x620/0xff0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f3734c8c169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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:00007f37337fe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f3734dabf80 RCX: 00007f3734c8c169 RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000005 RBP: 00007f3734ce7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 000080001d00c0d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc4fc832f R14: 00007f37337fe300 R15: 0000000000022000 </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.
