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[4.19][syzkaller] fix bug_on in __es_tree_search
Done
#I58670
Task
LiBaokun
Opened this issue
2022-05-19 09:19
<!-- #请根据issue的类型在标题右侧下拉框中选择对应的选项（需求、缺陷或CVE等）--> <!-- #请根据issue相关的版本在里程碑中选择对应的节点，若是与版本无关，请选择“不关联里程碑”--> ``` VFS: Open an write opened block device exclusively loop1 [13796 syz-executor.1]. ------------[ cut here ]------------ kernel BUG at fs/ext4/extents_status.c:199! invalid opcode: 0000 [#1] SMP KASAN CPU: 2 PID: 13796 Comm: syz-executor.1 Not tainted 4.19.90-dirty #17 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:ext4_es_end fs/ext4/extents_status.c:199 [inline] RIP: 0010:__es_tree_search+0x1e0/0x260 fs/ext4/extents_status.c:217 Code: 44 89 e7 44 89 ee e8 6f 14 95 ff 45 39 ec 77 28 31 db e8 73 13 95 ff 48 89 d8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 60 13 95 ff <0f> 0b 48 c7 c7 a0 6a 71 84 e8 88 77 a6 00 e8 4d 13 95 ff 48 89 df RSP: 0018:ffff8881632270c0 EFLAGS: 00010216 RAX: 0000000000040000 RBX: ffff888122825700 RCX: ffffc90001e01000 RDX: 000000000001afbf RSI: ffffffff81b11060 RDI: 0000000000000004 RBP: 0000000000000001 R08: ffff888158230040 R09: ffffed102526ccf2 R10: ffffed102526ccf2 R11: ffff888129366793 R12: 0000000000000001 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000001 FS: 00007f7c0ce7b700(0000) GS:ffff8881eab00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000011526d003 CR4: 0000000000360ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_es_cache_extent+0x109/0x340 fs/ext4/extents_status.c:766 ext4_cache_extents+0x239/0x2e0 fs/ext4/extents.c:561 ext4_find_extent+0x6b7/0xa20 fs/ext4/extents.c:964 ext4_ext_map_blocks+0x16b/0x4b70 fs/ext4/extents.c:4384 ext4_map_blocks+0xe26/0x19f0 fs/ext4/inode.c:567 ext4_getblk+0x320/0x4c0 fs/ext4/inode.c:980 ext4_bread+0x2d/0x170 fs/ext4/inode.c:1031 ext4_quota_read+0x248/0x320 fs/ext4/super.c:6257 v2_read_header+0x78/0x110 fs/quota/quota_v2.c:63 v2_check_quota_file+0x76/0x230 fs/quota/quota_v2.c:82 vfs_load_quota_inode+0x5d1/0x1530 fs/quota/dquot.c:2368 dquot_enable+0x28a/0x330 fs/quota/dquot.c:2490 ext4_quota_enable fs/ext4/super.c:6137 [inline] ext4_enable_quotas+0x5d7/0x960 fs/ext4/super.c:6163 ext4_fill_super+0xa7c9/0xdc00 fs/ext4/super.c:4754 mount_bdev+0x2e9/0x3b0 fs/super.c:1158 mount_fs+0x4b/0x1e4 fs/super.c:1261 vfs_kern_mount.part.3+0x77/0x3c0 fs/namespace.c:983 vfs_kern_mount fs/namespace.c:973 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0x48c/0x29a0 fs/namespace.c:2879 ksys_mount+0x116/0x130 fs/namespace.c:3101 __do_sys_mount fs/namespace.c:3115 [inline] __se_sys_mount fs/namespace.c:3112 [inline] __x64_sys_mount+0xbf/0x160 fs/namespace.c:3112 do_syscall_64+0xdf/0x530 arch/x86/entry/common.c:298 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45b3ea Code: 48 c7 c1 b4 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 b4 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7c0ce7aa28 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f7c0ce7aac0 RCX: 000000000045b3ea RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f7c0ce7aa80 RBP: 0000000020000100 R08: 00007f7c0ce7aac0 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000200 R14: 00007f7c0ce7aa80 R15: 0000000020000840 Modules linked in: ---[ end trace 9e40a55d38b91a6b ]--- RIP: 0010:ext4_es_end fs/ext4/extents_status.c:199 [inline] RIP: 0010:__es_tree_search+0x1e0/0x260 fs/ext4/extents_status.c:217 Code: 44 89 e7 44 89 ee e8 6f 14 95 ff 45 39 ec 77 28 31 db e8 73 13 95 ff 48 89 d8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 60 13 95 ff <0f> 0b 48 c7 c7 a0 6a 71 84 e8 88 77 a6 00 e8 4d 13 95 ff 48 89 df RSP: 0018:ffff8881632270c0 EFLAGS: 00010216 RAX: 0000000000040000 RBX: ffff888122825700 RCX: ffffc90001e01000 RDX: 000000000001afbf RSI: ffffffff81b11060 RDI: 0000000000000004 RBP: 0000000000000001 R08: ffff888158230040 R09: ffffed102526ccf2 R10: ffffed102526ccf2 R11: ffff888129366793 R12: 0000000000000001 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000001 FS: 00007f7c0ce7b700(0000) GS:ffff8881eab00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000011526d003 CR4: 0000000000360ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 VFS: Open an exclusive opened block device for write loop1 [857 syz-executor.1]. kmemleak: 7 new suspected memory leaks (see /sys/kernel/debug/kmemleak) ```
<!-- #请根据issue的类型在标题右侧下拉框中选择对应的选项（需求、缺陷或CVE等）--> <!-- #请根据issue相关的版本在里程碑中选择对应的节点，若是与版本无关，请选择“不关联里程碑”--> ``` VFS: Open an write opened block device exclusively loop1 [13796 syz-executor.1]. ------------[ cut here ]------------ kernel BUG at fs/ext4/extents_status.c:199! invalid opcode: 0000 [#1] SMP KASAN CPU: 2 PID: 13796 Comm: syz-executor.1 Not tainted 4.19.90-dirty #17 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:ext4_es_end fs/ext4/extents_status.c:199 [inline] RIP: 0010:__es_tree_search+0x1e0/0x260 fs/ext4/extents_status.c:217 Code: 44 89 e7 44 89 ee e8 6f 14 95 ff 45 39 ec 77 28 31 db e8 73 13 95 ff 48 89 d8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 60 13 95 ff <0f> 0b 48 c7 c7 a0 6a 71 84 e8 88 77 a6 00 e8 4d 13 95 ff 48 89 df RSP: 0018:ffff8881632270c0 EFLAGS: 00010216 RAX: 0000000000040000 RBX: ffff888122825700 RCX: ffffc90001e01000 RDX: 000000000001afbf RSI: ffffffff81b11060 RDI: 0000000000000004 RBP: 0000000000000001 R08: ffff888158230040 R09: ffffed102526ccf2 R10: ffffed102526ccf2 R11: ffff888129366793 R12: 0000000000000001 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000001 FS: 00007f7c0ce7b700(0000) GS:ffff8881eab00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000011526d003 CR4: 0000000000360ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_es_cache_extent+0x109/0x340 fs/ext4/extents_status.c:766 ext4_cache_extents+0x239/0x2e0 fs/ext4/extents.c:561 ext4_find_extent+0x6b7/0xa20 fs/ext4/extents.c:964 ext4_ext_map_blocks+0x16b/0x4b70 fs/ext4/extents.c:4384 ext4_map_blocks+0xe26/0x19f0 fs/ext4/inode.c:567 ext4_getblk+0x320/0x4c0 fs/ext4/inode.c:980 ext4_bread+0x2d/0x170 fs/ext4/inode.c:1031 ext4_quota_read+0x248/0x320 fs/ext4/super.c:6257 v2_read_header+0x78/0x110 fs/quota/quota_v2.c:63 v2_check_quota_file+0x76/0x230 fs/quota/quota_v2.c:82 vfs_load_quota_inode+0x5d1/0x1530 fs/quota/dquot.c:2368 dquot_enable+0x28a/0x330 fs/quota/dquot.c:2490 ext4_quota_enable fs/ext4/super.c:6137 [inline] ext4_enable_quotas+0x5d7/0x960 fs/ext4/super.c:6163 ext4_fill_super+0xa7c9/0xdc00 fs/ext4/super.c:4754 mount_bdev+0x2e9/0x3b0 fs/super.c:1158 mount_fs+0x4b/0x1e4 fs/super.c:1261 vfs_kern_mount.part.3+0x77/0x3c0 fs/namespace.c:983 vfs_kern_mount fs/namespace.c:973 [inline] do_new_mount fs/namespace.c:2549 [inline] do_mount+0x48c/0x29a0 fs/namespace.c:2879 ksys_mount+0x116/0x130 fs/namespace.c:3101 __do_sys_mount fs/namespace.c:3115 [inline] __se_sys_mount fs/namespace.c:3112 [inline] __x64_sys_mount+0xbf/0x160 fs/namespace.c:3112 do_syscall_64+0xdf/0x530 arch/x86/entry/common.c:298 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45b3ea Code: 48 c7 c1 b4 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 b4 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7c0ce7aa28 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f7c0ce7aac0 RCX: 000000000045b3ea RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f7c0ce7aa80 RBP: 0000000020000100 R08: 00007f7c0ce7aac0 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000200 R14: 00007f7c0ce7aa80 R15: 0000000020000840 Modules linked in: ---[ end trace 9e40a55d38b91a6b ]--- RIP: 0010:ext4_es_end fs/ext4/extents_status.c:199 [inline] RIP: 0010:__es_tree_search+0x1e0/0x260 fs/ext4/extents_status.c:217 Code: 44 89 e7 44 89 ee e8 6f 14 95 ff 45 39 ec 77 28 31 db e8 73 13 95 ff 48 89 d8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 60 13 95 ff <0f> 0b 48 c7 c7 a0 6a 71 84 e8 88 77 a6 00 e8 4d 13 95 ff 48 89 df RSP: 0018:ffff8881632270c0 EFLAGS: 00010216 RAX: 0000000000040000 RBX: ffff888122825700 RCX: ffffc90001e01000 RDX: 000000000001afbf RSI: ffffffff81b11060 RDI: 0000000000000004 RBP: 0000000000000001 R08: ffff888158230040 R09: ffffed102526ccf2 R10: ffffed102526ccf2 R11: ffff888129366793 R12: 0000000000000001 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000001 FS: 00007f7c0ce7b700(0000) GS:ffff8881eab00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000011526d003 CR4: 0000000000360ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 VFS: Open an exclusive opened block device for write loop1 [857 syz-executor.1]. kmemleak: 7 new suspected memory leaks (see /sys/kernel/debug/kmemleak) ```
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