CVE-2021-47117— Linux kernel 安全漏洞
影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | adb2355104b2109e06ba5276485d187d023b2fd2< e33bafad30d34cfa5e9787cb099cab05e2677fcb | affected |
adb2355104b2109e06ba5276485d187d023b2fd2< 5b3a9a2be59478b013a430ac57b0f3d65471b071 | affected | ||
adb2355104b2109e06ba5276485d187d023b2fd2< d8116743ef5432336289256b2f7c117299213eb9 | affected | ||
adb2355104b2109e06ba5276485d187d023b2fd2< 569496aa3776eea1ff0d49d0174ac1b7e861e107 | affected | ||
adb2355104b2109e06ba5276485d187d023b2fd2< 920697b004e49cb026e2e15fe91be065bf0741b7 | affected | ||
adb2355104b2109e06ba5276485d187d023b2fd2< d3b668b96ad3192c0581a248ae2f596cd054792a | affected | ||
adb2355104b2109e06ba5276485d187d023b2fd2< 48105dc98c9ca35af418746277b087cb2bc6df7c | affected | ||
adb2355104b2109e06ba5276485d187d023b2fd2< 082cd4ec240b8734a82a89ffb890216ac98fec68 | affected | ||
| … +10 条更多 | |||
获取后续新漏洞提醒登录后订阅
一、 漏洞 CVE-2021-47117 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
查看神龙十问 ↗ 尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
ext4: fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug on in ext4_es_cache_extent as ext4_split_extent_at failed We got follow bug_on when run fsstress with injecting IO fault: [130747.323114] kernel BUG at fs/ext4/extents_status.c:762! [130747.323117] Internal error: Oops - BUG: 0 [#1] SMP ...... [130747.334329] Call trace: [130747.334553] ext4_es_cache_extent+0x150/0x168 [ext4] [130747.334975] ext4_cache_extents+0x64/0xe8 [ext4] [130747.335368] ext4_find_extent+0x300/0x330 [ext4] [130747.335759] ext4_ext_map_blocks+0x74/0x1178 [ext4] [130747.336179] ext4_map_blocks+0x2f4/0x5f0 [ext4] [130747.336567] ext4_mpage_readpages+0x4a8/0x7a8 [ext4] [130747.336995] ext4_readpage+0x54/0x100 [ext4] [130747.337359] generic_file_buffered_read+0x410/0xae8 [130747.337767] generic_file_read_iter+0x114/0x190 [130747.338152] ext4_file_read_iter+0x5c/0x140 [ext4] [130747.338556] __vfs_read+0x11c/0x188 [130747.338851] vfs_read+0x94/0x150 [130747.339110] ksys_read+0x74/0xf0 This patch's modification is according to Jan Kara's suggestion in: https://patchwork.ozlabs.org/project/linux-ext4/patch/20210428085158.3728201-1-yebin10@huawei.com/ "I see. Now I understand your patch. Honestly, seeing how fragile is trying to fix extent tree after split has failed in the middle, I would probably go even further and make sure we fix the tree properly in case of ENOSPC and EDQUOT (those are easily user triggerable). Anything else indicates a HW problem or fs corruption so I'd rather leave the extent tree as is and don't try to fix it (which also means we will not create overlapping extents)."
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 ext4 模块的 ext4_es_cache_extent 方法中存在错误。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2021-47117 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2021-47117 的情报信息
请登录查看更多情报信息。
CVE-2021-47117 其他参考 (8)
同批安全公告 · Linux · 2024-03-15 · 共 26 条
| CVE-2021-47123 | Linux kernel 安全漏洞 | |
| CVE-2021-47135 | Linux kernel 安全漏洞 | |
| CVE-2021-47134 | Linux kernel 安全漏洞 | |
| CVE-2021-47133 | Linux kernel 安全漏洞 | |
| CVE-2021-47132 | Linux kernel 安全漏洞 | |
| CVE-2021-47131 | Linux kernel 安全漏洞 | |
| CVE-2021-47130 | Linux kernel 安全漏洞 | |
| CVE-2021-47129 | Linux kernel 安全漏洞 | |
| CVE-2021-47128 | Linux kernel 安全漏洞 | |
| CVE-2021-47127 | Linux kernel 安全漏洞 | |
| CVE-2021-47126 | Linux kernel 安全漏洞 | |
| CVE-2021-47125 | Linux kernel 安全漏洞 | |
| CVE-2021-47124 | Linux kernel 安全漏洞 | |
| CVE-2021-47109 | Linux kernel 安全漏洞 | |
| CVE-2021-47122 | Linux kernel 安全漏洞 | |
| CVE-2021-47121 | Linux kernel 安全漏洞 | |
| CVE-2021-47120 | Linux kernel 安全漏洞 | |
| CVE-2021-47119 | Linux kernel 安全漏洞 | |
| CVE-2021-47118 | Linux kernel 安全漏洞 | |
| CVE-2021-47116 | Linux kernel 安全漏洞 |
显示前 20 条，共 26 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-47117
暂无评论