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From: Wei C. <har...@gm...> - 2022-10-30 09:17:41
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Dear Linux Developer, Recently when using our tool to fuzz kernel, the following crash was triggered: HEAD commit: 64570fbc14f8 Linux 5.15-rc5 git tree: upstream compiler: gcc 8.0.1 console output: https://drive.google.com/file/d/1Vgv6uKdZ3XXWzqYUatGc_ca7xD5nHFbz/view?usp=share_link kernel config: https://drive.google.com/file/d/1uDOeEYgJDcLiSOrx9W8v2bqZ6uOA_55t/view?usp=share_link Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: Wei Chen <har...@gm...> loop0: detected capacity change from 0 to 67 ------------[ cut here ]------------ kernel BUG at fs/ntfs/aops.c:186! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 1 PID: 22515 Comm: syz-executor.0 Not tainted 5.15.0-rc5 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-48-gd9c812dda519-prebuilt.qemu.org 04/01/2014 RIP: 0010:ntfs_readpage+0x1468/0x1860 Code: 0e 2c 7d ff 49 8b 9f 30 fd ff ff 31 ff 48 c1 eb 03 83 e3 01 48 89 de e8 16 2d 7d ff 48 85 db 0f 85 61 f5 ff ff e8 e8 2b 7d ff <0f> 0b e8 e1 2b 7d ff f0 41 80 0c 24 10 e9 d9 f8 ff ff e8 d1 2b 7d RSP: 0018:ffffc900022bfaf0 EFLAGS: 00010206 RAX: 0000000000009cb0 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90001311000 RSI: ffff8881095cb700 RDI: 0000000000000002 RBP: 0000000000000020 R08: ffffffff81c04778 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea00044bf8c0 R14: ffff88810fea4d80 R15: ffff88810fea50a0 FS: 00007fc3f28c3700(0000) GS:ffff88813dc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000525b40 CR3: 0000000110e31000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_read_cache_page+0x521/0x7a0 map_mft_record+0xcb/0x600 ntfs_read_locked_inode+0x69/0x1d20 ntfs_read_inode_mount+0x517/0xfb0 ntfs_fill_super+0x8e9/0x1710 mount_bdev+0x23d/0x280 legacy_get_tree+0x2e/0x90 vfs_get_tree+0x29/0x100 path_mount+0x58e/0x10a0 do_mount+0x9b/0xb0 __x64_sys_mount+0x13a/0x150 do_syscall_64+0x34/0xb0 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x46abda Code: 48 c7 c1 bc ff ff ff 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 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc3f28c2a48 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fc3f28c2af0 RCX: 000000000046abda RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc3f28c2ab0 RBP: 0000000020000000 R08: 00007fc3f28c2af0 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000100 R13: 00007fc3f28c2ab0 R14: 0000000000000001 R15: 000000002007dd00 Modules linked in: ---[ end trace 55d1771117b77cd9 ]--- RIP: 0010:ntfs_readpage+0x1468/0x1860 Code: 0e 2c 7d ff 49 8b 9f 30 fd ff ff 31 ff 48 c1 eb 03 83 e3 01 48 89 de e8 16 2d 7d ff 48 85 db 0f 85 61 f5 ff ff e8 e8 2b 7d ff <0f> 0b e8 e1 2b 7d ff f0 41 80 0c 24 10 e9 d9 f8 ff ff e8 d1 2b 7d RSP: 0018:ffffc900022bfaf0 EFLAGS: 00010206 RAX: 0000000000009cb0 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90001311000 RSI: ffff8881095cb700 RDI: 0000000000000002 RBP: 0000000000000020 R08: ffffffff81c04778 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea00044bf8c0 R14: ffff88810fea4d80 R15: ffff88810fea50a0 FS: 00007fc3f28c3700(0000) GS:ffff88813dc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8c8c03e188 CR3: 0000000110e31000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Best, Wei |
