CVE-2024-26958— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
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，该漏洞源于内存释放后重用。
可能的 ATT&CK 技术 1 AI
T1068 · Exploitation for Privilege Escalation影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | af7cf057933f01dc7f33ddfb5e436ad598ed17ad< 6cd3f13aaa62970b5169d990e936b2e96943bc6a |
affected |
af7cf057933f01dc7f33ddfb5e436ad598ed17ad< 4595d90b5d2ea5fa4d318d13f59055aa4bf3e7f5 |
affected | ||
af7cf057933f01dc7f33ddfb5e436ad598ed17ad< 80d24b308b7ee7037fc90d8ac99f6f78df0a256f |
affected | ||
af7cf057933f01dc7f33ddfb5e436ad598ed17ad< 3abc2d160ed8213948b147295d77d44a22c88fa3 |
affected | ||
af7cf057933f01dc7f33ddfb5e436ad598ed17ad< e25447c35f8745337ea8bc0c9697fcac14df8605 |
affected | ||
af7cf057933f01dc7f33ddfb5e436ad598ed17ad< 1daf52b5ffb24870fbeda20b4967526d8f9e12ab |
affected | ||
af7cf057933f01dc7f33ddfb5e436ad598ed17ad< cf54f66e1dd78990ec6b32177bca7e6ea2144a95 |
affected | ||
af7cf057933f01dc7f33ddfb5e436ad598ed17ad< 17f46b803d4f23c66cacce81db35fef3adb8f2af |
affected | ||
| … +10 条更多 | |||
获取后续新漏洞提醒
登录后订阅
一、 漏洞 CVE-2024-26958 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
nfs: fix UAF in direct writes
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
nfs: fix UAF in direct writes
In production we have been hitting the following warning consistently
------------[ cut here ]------------
refcount_t: underflow; use-after-free.
WARNING: CPU: 17 PID: 1800359 at lib/refcount.c:28 refcount_warn_saturate+0x9c/0xe0
Workqueue: nfsiod nfs_direct_write_schedule_work [nfs]
RIP: 0010:refcount_warn_saturate+0x9c/0xe0
PKRU: 55555554
Call Trace:
<TASK>
? __warn+0x9f/0x130
? refcount_warn_saturate+0x9c/0xe0
? report_bug+0xcc/0x150
? handle_bug+0x3d/0x70
? exc_invalid_op+0x16/0x40
? asm_exc_invalid_op+0x16/0x20
? refcount_warn_saturate+0x9c/0xe0
nfs_direct_write_schedule_work+0x237/0x250 [nfs]
process_one_work+0x12f/0x4a0
worker_thread+0x14e/0x3b0
? ZSTD_getCParams_internal+0x220/0x220
kthread+0xdc/0x120
? __btf_name_valid+0xa0/0xa0
ret_from_fork+0x1f/0x30
This is because we're completing the nfs_direct_request twice in a row.
The source of this is when we have our commit requests to submit, we
process them and send them off, and then in the completion path for the
commit requests we have
if (nfs_commit_end(cinfo.mds))
nfs_direct_write_complete(dreq);
However since we're submitting asynchronous requests we sometimes have
one that completes before we submit the next one, so we end up calling
complete on the nfs_direct_request twice.
The only other place we use nfs_generic_commit_list() is in
__nfs_commit_inode, which wraps this call in a
nfs_commit_begin();
nfs_commit_end();
Which is a common pattern for this style of completion handling, one
that is also repeated in the direct code with get_dreq()/put_dreq()
calls around where we process events as well as in the completion paths.
Fix this by using the same pattern for the commit requests.
Before with my 200 node rocksdb stress running this warning would pop
every 10ish minutes. With my patch the stress test has been running for
several hours without popping.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
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，该漏洞源于内存释放后重用。
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-2024-26958 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-2024-26958 的情报信息
请登录查看更多情报信息。
CVE-2024-26958 邮件列表归档 (1)
CVE-2024-26958 其他参考 (7)
同批安全公告 · Linux · 2024-05-01 · 共 159 条
| CVE-2024-27388 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-26953 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-26931 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27053 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26990 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26952 | 8.3 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27018 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26936 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26980 | 8.2 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26954 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26994 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26966 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26974 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26976 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27062 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27061 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-26983 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27058 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27056 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-27017 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 159 条。 查看全部 → →
IV. Related Vulnerabilities
Same product: Linux
-
CVE-2026-98432
ipv4: free inet_opt and ireq_opt after an RCU grace period -
CVE-2026-98431
RDMA/uverbs: Fix mmap_lock/disassociation_lock circular depe -
CVE-2026-98430
RDMA/efa: Keep admin queues alive while IRQ is registered -
CVE-2026-98429
RDMA/efa: Keep EQ resources alive while IRQ is registered -
CVE-2026-98427
net/sched: codel: bound the dropping loop per dequeue call
Same vendor: Linux
-
CVE-2026-98432
ipv4: free inet_opt and ireq_opt after an RCU grace period -
CVE-2026-98431
RDMA/uverbs: Fix mmap_lock/disassociation_lock circular depe -
CVE-2026-98430
RDMA/efa: Keep admin queues alive while IRQ is registered -
CVE-2026-98429
RDMA/efa: Keep EQ resources alive while IRQ is registered -
CVE-2026-98427
net/sched: codel: bound the dropping loop per dequeue call
V. Comments for CVE-2024-26958
暂无评论