CVE-2026-72037net: lan743x: Initialize eth_syslock spinlock before use
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: net: lan743x: Initialize eth_syslock spinlock before use lan743x_hardware_init() calls pci11x1x_strap_get_status() during the PCI11x1x probe sequence. That helper acquires the Ethernet subsystem hardware lock via lan743x_hs_syslock_acquire(), which relies on adapter->eth_syslock_spinlock to serialize access. The spinlock is currently initialized only after the strap status is read. With CONFIG_DEBUG_SPINLOCK enabled, taking the zeroed initialized spinlock can trip the spinlock debug check. Fix by initializing adapter->eth_syslock_spinlock before reading the strap status so the probe path never attempts to lock an uninitialized spinlock.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 2 days later
· 2 days 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 88% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 46b777ad9a8c269113634cee6a380bc4e53f3964 – < dfaefd9a7808736fcd2ed0de108f55c4badc15cc
- affected 46b777ad9a8c269113634cee6a380bc4e53f3964 – < 6523daa6852b1bfef32ec7a105b0217e8a115687
- affected 46b777ad9a8c269113634cee6a380bc4e53f3964 – < b6a93a42e0e61f0ba0005a942ee3bffb16c0574e
- affected 46b777ad9a8c269113634cee6a380bc4e53f3964 – < 99a6f37b113c46815deb160c5012073563679ef4
- affected 46b777ad9a8c269113634cee6a380bc4e53f3964 – < b99e890e6b32ffa11c145a16fefcf2c7137a9578
- affected 46b777ad9a8c269113634cee6a380bc4e53f3964 – < 39139b1c1c2b614096519b526112c726adb12ff0
- affected 6.0
- unaffected < 6.0
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References6
- https://git.kernel.org/stable/c/dfaefd9a7808736fcd2ed0de108f55c4badc15cc (opens in a new tab)
- https://git.kernel.org/stable/c/6523daa6852b1bfef32ec7a105b0217e8a115687 (opens in a new tab)
- https://git.kernel.org/stable/c/b6a93a42e0e61f0ba0005a942ee3bffb16c0574e (opens in a new tab)
- https://git.kernel.org/stable/c/99a6f37b113c46815deb160c5012073563679ef4 (opens in a new tab)
- https://git.kernel.org/stable/c/b99e890e6b32ffa11c145a16fefcf2c7137a9578 (opens in a new tab)
- https://git.kernel.org/stable/c/39139b1c1c2b614096519b526112c726adb12ff0 (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)
- EUVD EUVD-2026-58995 (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-2026-72037)Record last updated .