CVE-2026-98528
gpio: cdev: fix kernel stack leak to user-space in error path
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: gpio: cdev: fix kernel stack leak to user-space in error path If we fail to acquire the GPIO chip guard in gpio_desc_to_lineinfo(), we return immediately before zeroing the info struct we'll end up passing to the user-space later in lineinfo_get_v1(). This may leak the kernel stack contents. Make gpio_desc_to_lineinfo() return int so that the -ENODEV returned on failure to acquire the guard can be propagated to the callers. While not strictly necessary: move the memset() before trying to acquire the SRCU read lock too for good measure.
Timeline
ID reserved
By Linux
- 23 days later
· 23 days later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected d83cee3d2bb131c7fca7e19f1e33dc7530fd7083 – < 8460ee5216ab9a38263b01dca4b0a27e083f70f3
- affected d83cee3d2bb131c7fca7e19f1e33dc7530fd7083 – < cf3d043582e106a0e57002bec8a6de8929ba3e1c
- affected d83cee3d2bb131c7fca7e19f1e33dc7530fd7083 – < 60a466f231905cd96ae6f0f3c44a710c97873dac
- affected d83cee3d2bb131c7fca7e19f1e33dc7530fd7083 – < 1feb5d39b05afd902ed9fc902ec5b15be03a4bdb
- affected 6.9
- unaffected < 6.9
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.55 – ≤ 6.18.*
- unaffected 7.2.9 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References (4)
- https://git.kernel.org/stable/c/8460ee5216ab9a38263b01dca4b0a27e083f70f3 (opens in a new tab)
- https://git.kernel.org/stable/c/cf3d043582e106a0e57002bec8a6de8929ba3e1c (opens in a new tab)
- https://git.kernel.org/stable/c/60a466f231905cd96ae6f0f3c44a710c97873dac (opens in a new tab)
- https://git.kernel.org/stable/c/1feb5d39b05afd902ed9fc902ec5b15be03a4bdb (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98528)Record last updated .