CVE-2025-38190
atm: Revert atm_account_tx() if copy_from_iter_full() fails.
In the Linux kernel, the following vulnerability has been resolved: atm: Revert atm_account_tx() if copy_from_iter_full() fails. In vcc_sendmsg(), we account skb->truesize to sk->sk_wmem_alloc by atm_account_tx(). It is expected to be reverted by atm_pop_raw() later called by vcc->dev->ops->send(vcc, skb). However, vcc_sendmsg() misses the same revert when copy_from_iter_full() fails, and then we will leak a socket. Let's factorise the revert part as atm_return_tx() and call it in the failure path. Note that the corresponding sk_wmem_alloc operation can be found in alloc_tx() as of the blamed commit. $ git blame -L:alloc_tx net/atm/common.c c55fa3cccbc2c~
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2; < 5e0d00992118e234ebf29d5145c1cc920342777e (affected, git) ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2; < c12430edd92fd49a4800b0f3fb395b50cb16bcc1 (affected, git) ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2; < 287b4f085d2ca3375cf1ee672af27410c64777e8 (affected, git) ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2; < 2252c539c43f9a1431a7e8b34e3c18e9dd77a96d (affected, git) ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2; < 3902205eadf35db59dbc2186c2a98b9e6182efa5 (affected, git) ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2; < 3d828519bd69bfcaabdd942a872679617ef06739 (affected, git) ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2; < 7d6bc28cfe5c8e3a279b4b4bdeed6698b2702685 (affected, git) ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2; < 7851263998d4269125fd6cb3fdbfc7c6db853859 (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
2.6.12 (affected) ≥ 0; < 2.6.12 (unaffected, semver) ≥ 5.4.295; ≤ 5.4.* (unaffected, semver) ≥ 5.10.239; ≤ 5.10.* (unaffected, semver) ≥ 5.15.186; ≤ 5.15.* (unaffected, semver) ≥ 6.1.142; ≤ 6.1.* (unaffected, semver) ≥ 6.6.95; ≤ 6.6.* (unaffected, semver) ≥ 6.12.35; ≤ 6.12.* (unaffected, semver) ≥ 6.15.4; ≤ 6.15.* (unaffected, semver) ≥ 6.16; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/5e0d00992118e234ebf29d5145c1cc920342777eCNA: Linux
- https://git.kernel.org/stable/c/c12430edd92fd49a4800b0f3fb395b50cb16bcc1CNA: Linux
- https://git.kernel.org/stable/c/287b4f085d2ca3375cf1ee672af27410c64777e8CNA: Linux
- https://git.kernel.org/stable/c/2252c539c43f9a1431a7e8b34e3c18e9dd77a96dCNA: Linux
- https://git.kernel.org/stable/c/3902205eadf35db59dbc2186c2a98b9e6182efa5CNA: Linux
- https://git.kernel.org/stable/c/3d828519bd69bfcaabdd942a872679617ef06739CNA: Linux
- https://git.kernel.org/stable/c/7d6bc28cfe5c8e3a279b4b4bdeed6698b2702685CNA: Linux
- https://git.kernel.org/stable/c/7851263998d4269125fd6cb3fdbfc7c6db853859CNA: Linux
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlADP: CVE
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlADP: CVE
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