CVE-2026-52967smb/client: fix possible infinite loop and oob read in symlink_data()
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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: smb/client: fix possible infinite loop and oob read in symlink_data() On 32-bit architectures, the infinite loop is as follows: len = p->ErrorDataLength == 0xfffffff8 u8 *next = p->ErrorContextData + len next == p On 32-bit architectures, the out-of-bounds read is as follows: len = p->ErrorDataLength == 0xfffffff0 u8 *next = p->ErrorContextData + len next == (u8 *)p - 8
- CVSS
- 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/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
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 76894f3e2f71177747b8b4763fb180e800279585 builds before 1cfa2d59f669db28d6292d10ff87ca6837c781b0; from 76894f3e2f71177747b8b4763fb180e800279585 before b41598bf54b3fe528994e573df6008f8f4d0a4f4; from 76894f3e2f71177747b8b4763fb180e800279585 before cd4b9b662f0fb9aa97ee6bf9034eca76fc6cab23; 76894f3e2f71177747b8b4763fb180e800279585 builds before 97a05b0ae9ea5ec052be2eef0f9cc7ce03501bbb; 76894f3e2f71177747b8b4763fb180e800279585 builds before 1b9331b16b0ed9414dcf7583d8134bdfeb117aae; 76894f3e2f71177747b8b4763fb180e800279585 builds before 7d9a7f1f96cd617ee9e75bb22217c709038e26b8; 2d046892a493d9760c35fdaefc3017f27f91b621; from 6.0.16 before 6.1 | CNA record |
linux linux_kernel linux:linux_kernel | from 6.0.16 before 6.1.175; from 6.2 before 6.6.141; from 6.7 before 6.12.91; from 6.13 before 6.18.33; from 6.19 before 7.0.10; 7.1; 7.1; 7.1 | NVD |
References
- https://git.kernel.org/stable/c/1cfa2d59f669db28d6292d10ff87ca6837c781b0patch
- https://git.kernel.org/stable/c/b41598bf54b3fe528994e573df6008f8f4d0a4f4patch
- https://git.kernel.org/stable/c/cd4b9b662f0fb9aa97ee6bf9034eca76fc6cab23patch
- https://git.kernel.org/stable/c/97a05b0ae9ea5ec052be2eef0f9cc7ce03501bbbpatch
- https://git.kernel.org/stable/c/1b9331b16b0ed9414dcf7583d8134bdfeb117aaepatch
- https://git.kernel.org/stable/c/7d9a7f1f96cd617ee9e75bb22217c709038e26b8patch
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.