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[OLK-5.10] kernel BUG in unaccount_page_cache_page
Done
#I8ZTOK
Bug
shaozhengchao
Opened this issue
2024-01-30 10:33
**【标题描述】能够简要描述问题：说明什么场景下，做了什么操作，出现什么问题（尽量使用正向表达方式）** syz log信息： r3 = socket$inet_tcp(0x2, 0x1, 0x0) mmap(&(0x7f0000ff9000/0x4000)=nil, 0x4000, 0x0, 0x12, r3, 0x0) r4 = socket$inet_tcp(0x2, 0x1, 0x0) bind$inet(r4, &(0x7f0000000000)={0x2, 0x4e24, @multicast1}, 0x10) connect$inet(r4, &(0x7f00000006c0)={0x2, 0x4e24, @empty}, 0x10) r5 = openat$dir(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x181e42, 0x0) fallocate(r5, 0x0, 0x0, 0x85b8) sendfile(r4, r5, 0x0, 0x8ba0) getsockopt$inet_tcp_TCP_ZEROCOPY_RECEIVE(r4, 0x6, 0x23, &(0x7f00000001c0)={&(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000000440)=0x40) r5 = openat$dir(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x181e42, 0x0) 执行以下命令： ./syz-execprog -executor=./syz-executor -repeat=0 -procs=2 -cover=0 log1 出现问题 **一、缺陷信息** **内核信息：** 5.10+ **缺陷归属组件：** **缺陷归属的版本：** **缺陷简述：** **【环境信息】** 硬件信息 - 裸机场景请提供问题的硬件信息 - 虚拟机场景请提供虚拟机的XML文件或配置信息 软件信息 - OS版本及分支信息 - 内核信息 - 发现问题的组件版本信息 网络信息 - 如果有特殊组网，请提供网络拓扑信息 **【问题复现步骤】**，请描述具体的操作步骤 **【实际结果】**，请描述出问题的结果和影响 **【其他相关附件信息】** 比如系统message日志/组件日志、dump信息、图片等 raw: 0000000000000000 0000000000000000 0000000400000000 ffff8880086da000 page dumped because: VM_BUG_ON_PAGE(page_mapped(page)) pages's memcg:ffff8880086da000 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:161! invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 PID: 74093 Comm: syz-executor.2 Tainted: G W 5.10.0-10767-gf04214e80344-dirty #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:unaccount_page_cache_page+0xddd/0x16e0 mm/filemap.c:161 Code: ff 48 85 db 0f 84 a2 08 00 00 c7 04 24 00 fe ff ff e9 43 f4 ff ff e8 52 3d e4 ff 48 c7 c6 40 a6 95 83 48 89 ef e8 b3 04 0b 00 <0f> 0b 48 c7 c7 20 86 14 85 e8 8d f9 b5 01 e8 30 3d e4 ff 48 8b 44 RSP: 0018:ffffc900011cf660 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888108a6c6c0 RSI: ffffffff83103bd5 RDI: fffff52000239e6f RBP: ffffea00045befc0 R08: 000000000000001e R09: ffff88811b0b00db R10: 0000000000000000 R11: 0000000000000001 R12: ffffea00045befc8 R13: ffff8881171ace60 R14: 0000000000000fc0 R15: ffffea00045befc0 FS: 00007fad2bbcf700(0000) GS:ffff88811b080000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000052a170 CR3: 000000003b4d6002 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: delete_from_page_cache_batch+0xb9/0x230 mm/filemap.c:345 truncate_inode_pages_range+0x23e/0x19e0 mm/truncate.c:327 truncate_inode_pages mm/truncate.c:425 [inline] truncate_pagecache+0x56/0x70 mm/truncate.c:749 ext4_setattr+0xbcb/0x1130 fs/ext4/inode.c:5667 notify_change+0x519/0xaf0 fs/attr.c:411 do_truncate+0x122/0x1b0 fs/open.c:64 handle_truncate fs/namei.c:2983 [inline] do_open+0x5a4/0x8e0 fs/namei.c:3324 path_openat+0x1c2/0x520 fs/namei.c:3438 do_filp_open+0x14e/0x2a0 fs/namei.c:3465 do_sys_openat2+0x566/0x750 fs/open.c:1186 do_sys_open fs/open.c:1202 [inline] __do_sys_openat fs/open.c:1218 [inline] __se_sys_openat fs/open.c:1213 [inline] __x64_sys_openat+0xf0/0x180 fs/open.c:1213 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x62/0xc7 RIP: 0033:0x479b09 Code: 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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:00007fad2bbcebe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 000000000079c1f0 RCX: 0000000000479b09 RDX: 0000000000181e42 RSI: 00000000200000c0 RDI: ffffffffffffff9c RBP: 000000000079c1f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 000000000079c1f0 R15: 00007fff86425140 Modules linked in: ---[ end trace bf59cf667aae11f3 ]--- RIP: 0010:unaccount_page_cache_page+0xddd/0x16e0 mm/filemap.c:161 Code: ff 48 85 db 0f 84 a2 08 00 00 c7 04 24 00 fe ff ff e9 43 f4 ff ff e8 52 3d e4 ff 48 c7 c6 40 a6 95 83 48 89 ef e8 b3 04 0b 00 <0f> 0b 48 c7 c7 20 86 14 85 e8 8d f9 b5 01 e8 30 3d e4 ff 48 8b 44 RSP: 0018:ffffc900011cf660 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888108a6c6c0 RSI: ffffffff83103bd5 RDI: fffff52000239e6f RBP: ffffea00045befc0 R08: 000000000000001e R09: ffff88811b0b00db R10: 0000000000000000 R11: 0000000000000001 R12: ffffea00045befc8 R13: ffff8881171ace60 R14: 0000000000000fc0 R15: ffffea00045befc0 FS: 00007fad2bbcf700(0000) GS:ffff88811b080000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000052a170 CR3: 000000003b4d6002 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 **缺陷详情参考链接：** **缺陷分析指导链接：** https：xxx
**【标题描述】能够简要描述问题：说明什么场景下，做了什么操作，出现什么问题（尽量使用正向表达方式）** syz log信息： r3 = socket$inet_tcp(0x2, 0x1, 0x0) mmap(&(0x7f0000ff9000/0x4000)=nil, 0x4000, 0x0, 0x12, r3, 0x0) r4 = socket$inet_tcp(0x2, 0x1, 0x0) bind$inet(r4, &(0x7f0000000000)={0x2, 0x4e24, @multicast1}, 0x10) connect$inet(r4, &(0x7f00000006c0)={0x2, 0x4e24, @empty}, 0x10) r5 = openat$dir(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x181e42, 0x0) fallocate(r5, 0x0, 0x0, 0x85b8) sendfile(r4, r5, 0x0, 0x8ba0) getsockopt$inet_tcp_TCP_ZEROCOPY_RECEIVE(r4, 0x6, 0x23, &(0x7f00000001c0)={&(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, &(0x7f0000000440)=0x40) r5 = openat$dir(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x181e42, 0x0) 执行以下命令： ./syz-execprog -executor=./syz-executor -repeat=0 -procs=2 -cover=0 log1 出现问题 **一、缺陷信息** **内核信息：** 5.10+ **缺陷归属组件：** **缺陷归属的版本：** **缺陷简述：** **【环境信息】** 硬件信息 - 裸机场景请提供问题的硬件信息 - 虚拟机场景请提供虚拟机的XML文件或配置信息 软件信息 - OS版本及分支信息 - 内核信息 - 发现问题的组件版本信息 网络信息 - 如果有特殊组网，请提供网络拓扑信息 **【问题复现步骤】**，请描述具体的操作步骤 **【实际结果】**，请描述出问题的结果和影响 **【其他相关附件信息】** 比如系统message日志/组件日志、dump信息、图片等 raw: 0000000000000000 0000000000000000 0000000400000000 ffff8880086da000 page dumped because: VM_BUG_ON_PAGE(page_mapped(page)) pages's memcg:ffff8880086da000 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:161! invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 PID: 74093 Comm: syz-executor.2 Tainted: G W 5.10.0-10767-gf04214e80344-dirty #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:unaccount_page_cache_page+0xddd/0x16e0 mm/filemap.c:161 Code: ff 48 85 db 0f 84 a2 08 00 00 c7 04 24 00 fe ff ff e9 43 f4 ff ff e8 52 3d e4 ff 48 c7 c6 40 a6 95 83 48 89 ef e8 b3 04 0b 00 <0f> 0b 48 c7 c7 20 86 14 85 e8 8d f9 b5 01 e8 30 3d e4 ff 48 8b 44 RSP: 0018:ffffc900011cf660 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888108a6c6c0 RSI: ffffffff83103bd5 RDI: fffff52000239e6f RBP: ffffea00045befc0 R08: 000000000000001e R09: ffff88811b0b00db R10: 0000000000000000 R11: 0000000000000001 R12: ffffea00045befc8 R13: ffff8881171ace60 R14: 0000000000000fc0 R15: ffffea00045befc0 FS: 00007fad2bbcf700(0000) GS:ffff88811b080000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000052a170 CR3: 000000003b4d6002 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: delete_from_page_cache_batch+0xb9/0x230 mm/filemap.c:345 truncate_inode_pages_range+0x23e/0x19e0 mm/truncate.c:327 truncate_inode_pages mm/truncate.c:425 [inline] truncate_pagecache+0x56/0x70 mm/truncate.c:749 ext4_setattr+0xbcb/0x1130 fs/ext4/inode.c:5667 notify_change+0x519/0xaf0 fs/attr.c:411 do_truncate+0x122/0x1b0 fs/open.c:64 handle_truncate fs/namei.c:2983 [inline] do_open+0x5a4/0x8e0 fs/namei.c:3324 path_openat+0x1c2/0x520 fs/namei.c:3438 do_filp_open+0x14e/0x2a0 fs/namei.c:3465 do_sys_openat2+0x566/0x750 fs/open.c:1186 do_sys_open fs/open.c:1202 [inline] __do_sys_openat fs/open.c:1218 [inline] __se_sys_openat fs/open.c:1213 [inline] __x64_sys_openat+0xf0/0x180 fs/open.c:1213 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x62/0xc7 RIP: 0033:0x479b09 Code: 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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:00007fad2bbcebe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 000000000079c1f0 RCX: 0000000000479b09 RDX: 0000000000181e42 RSI: 00000000200000c0 RDI: ffffffffffffff9c RBP: 000000000079c1f0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 000000000079c1f0 R15: 00007fff86425140 Modules linked in: ---[ end trace bf59cf667aae11f3 ]--- RIP: 0010:unaccount_page_cache_page+0xddd/0x16e0 mm/filemap.c:161 Code: ff 48 85 db 0f 84 a2 08 00 00 c7 04 24 00 fe ff ff e9 43 f4 ff ff e8 52 3d e4 ff 48 c7 c6 40 a6 95 83 48 89 ef e8 b3 04 0b 00 <0f> 0b 48 c7 c7 20 86 14 85 e8 8d f9 b5 01 e8 30 3d e4 ff 48 8b 44 RSP: 0018:ffffc900011cf660 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888108a6c6c0 RSI: ffffffff83103bd5 RDI: fffff52000239e6f RBP: ffffea00045befc0 R08: 000000000000001e R09: ffff88811b0b00db R10: 0000000000000000 R11: 0000000000000001 R12: ffffea00045befc8 R13: ffff8881171ace60 R14: 0000000000000fc0 R15: ffffea00045befc0 FS: 00007fad2bbcf700(0000) GS:ffff88811b080000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000052a170 CR3: 000000003b4d6002 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 **缺陷详情参考链接：** **缺陷分析指导链接：** https：xxx
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