CVE-2025-39920
In the Linux kernel, the following vulnerability has been resolved: pcmcia: Add error handling for add_interval() in do_validate_mem() In the do_validate_mem(), the call to add_interval() does not handle errors.
Does this matter?
Lower severity and a low EPSS score (0.16%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: pcmcia: Add error handling for add_interval() in do_validate_mem() In the do_validate_mem(), the call to add_interval() does not handle errors. If kmalloc() fails in add_interval(), it could result in a null pointer being inserted into the linked list, leading to illegal memory access when sub_interval() is called next. This patch adds an error handling for the add_interval(). If add_interval() returns an error, the function will return early with the error code.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.16% probability · 6th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/06b26e3099207c94b3d1be8565aedc6edc4f0a60Patch
- https://git.kernel.org/stable/c/289b58f8ff3198d091074a751d6b8f6827726f3ePatch
- https://git.kernel.org/stable/c/369bf6e241506583f4ee7593c53b92e5a9f271b4Patch
- https://git.kernel.org/stable/c/4a81f78caa53e0633cf311ca1526377d9bff7479Patch
- https://git.kernel.org/stable/c/5b60ed401b47897352c520bc724c85aa908dedccPatch
- https://git.kernel.org/stable/c/85be7ef8c8e792a414940a38d94565dd48d2f236Patch
- https://git.kernel.org/stable/c/8699358b6ac99b8ccc97ed9e6e3669ef8958ef7bPatch
- https://git.kernel.org/stable/c/ae184024ef31423e5beb44cf4f52999bbcf2fe5bPatch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.