CVE-2026-72037net: lan743x: Initialize eth_syslock spinlock before use
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: 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.
- CVSS
- Not yet scored
- 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
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 46b777ad9a8c269113634cee6a380bc4e53f3964 before dfaefd9a7808736fcd2ed0de108f55c4badc15cc; from 46b777ad9a8c269113634cee6a380bc4e53f3964 before 6523daa6852b1bfef32ec7a105b0217e8a115687; from 46b777ad9a8c269113634cee6a380bc4e53f3964 before b6a93a42e0e61f0ba0005a942ee3bffb16c0574e; from 46b777ad9a8c269113634cee6a380bc4e53f3964 before 99a6f37b113c46815deb160c5012073563679ef4; from 46b777ad9a8c269113634cee6a380bc4e53f3964 before b99e890e6b32ffa11c145a16fefcf2c7137a9578; from 46b777ad9a8c269113634cee6a380bc4e53f3964 before 39139b1c1c2b614096519b526112c726adb12ff0 | CNA record |
References
- https://git.kernel.org/stable/c/dfaefd9a7808736fcd2ed0de108f55c4badc15cc
- https://git.kernel.org/stable/c/6523daa6852b1bfef32ec7a105b0217e8a115687
- https://git.kernel.org/stable/c/b6a93a42e0e61f0ba0005a942ee3bffb16c0574e
- https://git.kernel.org/stable/c/99a6f37b113c46815deb160c5012073563679ef4
- https://git.kernel.org/stable/c/b99e890e6b32ffa11c145a16fefcf2c7137a9578
- https://git.kernel.org/stable/c/39139b1c1c2b614096519b526112c726adb12ff0
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.