CVE-2026-45948ext4: fix memory leak in ext4_ext_shift_extents()
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in ext4_ext_shift_extents() In ext4_ext_shift_extents(), if the extent is NULL in the while loop, the function returns immediately without releasing the path obtained via ext4_find_extent(), leading to a memory leak. Fix this by jumping to the out label to ensure the path is properly released.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- May 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from a18ed359bdddcded4f97ff5e2f07793ff9336913 before 7e807cb8603b7664fa630a696cd891d9a03c248d; from a18ed359bdddcded4f97ff5e2f07793ff9336913 before afc5e61e1a07b2b833bd72cbee36ecce9cd901e2; from a18ed359bdddcded4f97ff5e2f07793ff9336913 before 1bce219ee5512cf179ba40cf114945a14a16e21f; from a18ed359bdddcded4f97ff5e2f07793ff9336913 before 4a79fde8db7eba7f1128d971ceba4e3c9ac84aec; from a18ed359bdddcded4f97ff5e2f07793ff9336913 before 2f4b1052246ca646bb17bfe0f53df2fdf9729b58; from a18ed359bdddcded4f97ff5e2f07793ff9336913 before 12615ab4bfb69678e5d961b28bb70040299e51b1; from a18ed359bdddcded4f97ff5e2f07793ff9336913 before bd7b52557e4a3ccd7595fdb3a585f1257de57935; from a18ed359bdddcded4f97ff5e2f07793ff9336913 before ca81109d4a8f192dc1cbad4a1ee25246363c2833 | CNA record |
linux linux_kernel linux:linux_kernel | from 3.15.1 before 5.10.252; from 5.11 before 5.15.202; from 5.16 before 6.1.165; from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.14; from 6.19 before 6.19.4; 3.15; and 6 more ranges | NVD |
References
- https://git.kernel.org/stable/c/7e807cb8603b7664fa630a696cd891d9a03c248dpatch
- https://git.kernel.org/stable/c/afc5e61e1a07b2b833bd72cbee36ecce9cd901e2patch
- https://git.kernel.org/stable/c/1bce219ee5512cf179ba40cf114945a14a16e21fpatch
- https://git.kernel.org/stable/c/4a79fde8db7eba7f1128d971ceba4e3c9ac84aecpatch
- https://git.kernel.org/stable/c/2f4b1052246ca646bb17bfe0f53df2fdf9729b58patch
- https://git.kernel.org/stable/c/12615ab4bfb69678e5d961b28bb70040299e51b1patch
- https://git.kernel.org/stable/c/bd7b52557e4a3ccd7595fdb3a585f1257de57935patch
- https://git.kernel.org/stable/c/ca81109d4a8f192dc1cbad4a1ee25246363c2833patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.