general protection fault, probably for non-canonical address 0xed6f4b2e65ecad8d: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x6b7a79732f656c68-0x6b7a79732f656c6f] CPU: 0 PID: 5789 Comm: syz-executor.0 Not tainted 6.5.0-rc7-next-20230825-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:__load_block_bitmap fs/udf/balloc.c:77 [inline] RIP: 0010:load_block_bitmap+0x31/0x560 fs/udf/balloc.c:100 Code: 54 49 89 f4 55 4d 8d 7c 24 04 48 89 fd 53 89 d3 48 83 ec 20 e8 90 73 98 fe 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 46 RSP: 0018:ffffc900088d6d38 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 00000000000656c6 RCX: 0000000000000000 RDX: 0d6f4f2e65ecad8d RSI: ffffffff82ef5ee0 RDI: ffff888060a76000 RBP: ffff888060a76000 R08: 0000000000000006 R09: 0000000000001000 R10: 0000000000000d26 R11: 79737372656c6c61 R12: 6b7a79732f656c67 R13: 00000000000656c6 R14: 0000000000000d21 R15: 6b7a79732f656c6b FS: 00007fd4c7d6b6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005590678b6950 CR3: 0000000022329000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_bitmap_free_blocks fs/udf/balloc.c:166 [inline] udf_free_blocks+0xa56/0x1380 fs/udf/balloc.c:678 udf_split_extents fs/udf/inode.c:952 [inline] inode_getblk+0x33c1/0x3e30 fs/udf/inode.c:887 udf_map_block+0x2de/0x570 fs/udf/inode.c:444 __udf_get_block+0x99/0x330 fs/udf/inode.c:458 __block_write_begin_int+0x3c0/0x1470 fs/buffer.c:2107 __block_write_begin fs/buffer.c:2157 [inline] block_write_begin+0xb1/0x490 fs/buffer.c:2216 udf_write_begin+0x283/0x360 fs/udf/inode.c:261 generic_perform_write+0x278/0x600 mm/filemap.c:3945 __generic_file_write_iter+0x1f9/0x240 mm/filemap.c:4040 udf_file_write_iter+0x239/0x740 fs/udf/file.c:111 call_write_iter include/linux/fs.h:1985 [inline] do_iter_readv_writev+0x21e/0x3c0 fs/read_write.c:735 do_iter_write+0x17f/0x830 fs/read_write.c:860 vfs_iter_write+0x7a/0xb0 fs/read_write.c:901 iter_file_splice_write+0x698/0xbf0 fs/splice.c:736 do_splice_from fs/splice.c:933 [inline] direct_splice_actor+0x118/0x180 fs/splice.c:1142 splice_direct_to_actor+0x347/0xa30 fs/splice.c:1088 do_splice_direct+0x1af/0x280 fs/splice.c:1194 do_sendfile+0xb88/0x1390 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64 fs/read_write.c:1308 [inline] __x64_sys_sendfile64+0x1d6/0x220 fs/read_write.c:1308 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: 0033:0x7fd4c707cb29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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:00007fd4c7d6b0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fd4c719c050 RCX: 00007fd4c707cb29 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000005 RBP: 00007fd4c70c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000100000001 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fd4c719c050 R15: 00007ffc66eb8db8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__load_block_bitmap fs/udf/balloc.c:77 [inline] RIP: 0010:load_block_bitmap+0x31/0x560 fs/udf/balloc.c:100 Code: 54 49 89 f4 55 4d 8d 7c 24 04 48 89 fd 53 89 d3 48 83 ec 20 e8 90 73 98 fe 4c 89 fa 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 46 RSP: 0018:ffffc900088d6d38 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 00000000000656c6 RCX: 0000000000000000 RDX: 0d6f4f2e65ecad8d RSI: ffffffff82ef5ee0 RDI: ffff888060a76000 RBP: ffff888060a76000 R08: 0000000000000006 R09: 0000000000001000 R10: 0000000000000d26 R11: 79737372656c6c61 R12: 6b7a79732f656c67 R13: 00000000000656c6 R14: 0000000000000d21 R15: 6b7a79732f656c6b FS: 00007fd4c7d6b6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005590678b6950 CR3: 0000000022329000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 54 push %rsp 1: 49 89 f4 mov %rsi,%r12 4: 55 push %rbp 5: 4d 8d 7c 24 04 lea 0x4(%r12),%r15 a: 48 89 fd mov %rdi,%rbp d: 53 push %rbx e: 89 d3 mov %edx,%ebx 10: 48 83 ec 20 sub $0x20,%rsp 14: e8 90 73 98 fe call 0xfe9873a9 19: 4c 89 fa mov %r15,%rdx 1c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 23: fc ff df 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx <-- trapping instruction 2e: 4c 89 f8 mov %r15,%rax 31: 83 e0 07 and $0x7,%eax 34: 83 c0 03 add $0x3,%eax 37: 38 d0 cmp %dl,%al 39: 7c 08 jl 0x43 3b: 84 d2 test %dl,%dl 3d: 0f .byte 0xf 3e: 85 .byte 0x85 3f: 46 rex.RX