In the Linux kernel, the following vulnerability has been resolved:
procfs: fix possible double mmput() in do_procmap_query()
When user provides incorrectly sized buffer for build ID for PROCMAP_QUERY
we return with -ENAMETOOLONG error. After recent changes this condition
happens later, after we unlocked mmap_lock/per-VMA lock and did mmput(),
so original goto out is now wrong and will double-mmput() mm_struct. Fix
by jumping further to clean up only vm_file and name_buf.
References
Configurations
Configuration 1 (hide)
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History
12 May 2026, 19:52
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/61dc9f776705d6db6847c101b98fa4f0e9eb6fa3 - Patch | |
| References | () https://git.kernel.org/stable/c/8adaff87db143583e08eec4f4e7788f1ef8af94d - Patch | |
| References | () https://git.kernel.org/stable/c/90f5e87c9b75833b9ef3a4415b92c0247f28ab2f - Patch | |
| References | () https://git.kernel.org/stable/c/f9fe092084cd04deea18747f58a2304026e76aaa - Patch | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.19:-:*:*:*:*:*:* |
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| First Time |
Linux linux Kernel
Linux |
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| CWE | CWE-415 |
08 May 2026, 13:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
06 May 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-06 12:16
Updated : 2026-05-12 19:52
NVD link : CVE-2026-43178
Mitre link : CVE-2026-43178
CVE.ORG link : CVE-2026-43178
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-415
Double Free