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From: Sanan H. <san...@Kn...> - 2023-01-24 19:56:41
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Good day, dear maintainers, We found a bug using a modified kernel configuration file used by syzbot. We enhanced the coverage of the configuration file using our tool, klocalizer. Kernel Branch: 6.2.0-rc4-next-20230120 Kernel config: https://drive.google.com/file/d/1E1xcz6pp-gsnaqVzG9EgeAJ7mtO-GS3M/view?usp=sharing Reproducer: https://drive.google.com/file/d/1y5zAf7Q0VGFeGQYoTzjBU2b_UZZeUD48/view?usp=sharing Thank you! Best regards, Sanan Hasanov ------------[ cut here ]------------ kernel BUG at fs/ntfs/file.c:493! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 21551 Comm: syz-executor.0 Not tainted 6.2.0-rc4-next-20230120 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 RIP: 0010:__ntfs_grab_cache_pages fs/ntfs/file.c:493 [inline] RIP: 0010:ntfs_perform_write.isra.0+0x16d6/0x3070 fs/ntfs/file.c:1833 Code: 00 00 48 8b 44 24 40 41 89 d9 48 c7 c2 60 c1 21 8a 48 c7 c7 20 c7 21 8a 48 8b 30 e8 14 2f ff ff e9 5c ef ff ff e8 3a 7a d3 fe <0f> 0b e8 33 7a d3 fe 48 8b 5c 24 48 31 ff 48 89 de e8 f4 76 d3 fe RSP: 0018:ffffc9000b16fa78 EFLAGS: 00010216 RAX: 00000000000300c6 RBX: 0000000000000000 RCX: ffffc9000f349000 RDX: 0000000000040000 RSI: ffffffff82aa6d46 RDI: 0000000000000005 RBP: ffffc9000b16fbb8 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffffea0001b55a00 R13: ffffea0001b55a00 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007feedead7700(0000) GS:ffff888119a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6d639e0000 CR3: 000000001260b000 CR4: 0000000000350ef0 Call Trace: <TASK> ntfs_file_write_iter+0x5c0/0x1df0 fs/ntfs/file.c:1917 call_write_iter include/linux/fs.h:1851 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x9f3/0xe20 fs/read_write.c:584 ksys_write+0x12b/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7feedd88edcd Code: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 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:00007feedead6bf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007feedd9bbf80 RCX: 00007feedd88edcd RDX: 0000000000000001 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 00007feedead6c50 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000a R13: 00007ffc85b8592f R14: 00007ffc85b85ad0 R15: 00007feedead6d80 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__ntfs_grab_cache_pages fs/ntfs/file.c:493 [inline] RIP: 0010:ntfs_perform_write.isra.0+0x16d6/0x3070 fs/ntfs/file.c:1833 Code: 00 00 48 8b 44 24 40 41 89 d9 48 c7 c2 60 c1 21 8a 48 c7 c7 20 c7 21 8a 48 8b 30 e8 14 2f ff ff e9 5c ef ff ff e8 3a 7a d3 fe <0f> 0b e8 33 7a d3 fe 48 8b 5c 24 48 31 ff 48 89 de e8 f4 76 d3 fe RSP: 0018:ffffc9000b16fa78 EFLAGS: 00010216 RAX: 00000000000300c6 RBX: 0000000000000000 RCX: ffffc9000f349000 RDX: 0000000000040000 RSI: ffffffff82aa6d46 RDI: 0000000000000005 RBP: ffffc9000b16fbb8 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffffea0001b55a00 R13: ffffea0001b55a00 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007feedead7700(0000) GS:ffff888119a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6d639e0000 CR3: 000000001260b000 CR4: 0000000000350ef0 |
