CVE-2026-72037
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.
How to fix
- Linux Linuxdfaefd9a7808736fcd2ed0de108f55c4badc15cc, 6523daa6852b1bfef32ec7a105b0217e8a115687, b6a93a42e0e61f0ba0005a942ee3bffb16c0574e, 99a6f37b113c46815deb160c5012073563679ef4, b99e890e6b32ffa11c145a16fefcf2c7137a9578, 39139b1c1c2b614096519b526112c726adb12ff0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 46b777ad9a8c269113634cee6a380bc4e53f3964 ≤ v < dfaefd9a7808736fcd2ed0de108f55c4badc15cc, 46b777ad9a8c269113634cee6a380bc4e53f3964 ≤ v < 6523daa6852b1bfef32ec7a105b0217e8a115687, 46b777ad9a8c269113634cee6a380bc4e53f3964 ≤ v < b6a93a42e0e61f0ba0005a942ee3bffb16c0574e, 46b777ad9a8c269113634cee6a380bc4e53f3964 ≤ v < 99a6f37b113c46815deb160c5012073563679ef4, 46b777ad9a8c269113634cee6a380bc4e53f3964 ≤ v < b99e890e6b32ffa11c145a16fefcf2c7137a9578, 46b777ad9a8c269113634cee6a380bc4e53f3964 ≤ v < 39139b1c1c2b614096519b526112c726adb12ff0, 6.0 | dfaefd9a7808736fcd2ed0de108f55c4badc15cc, 6523daa6852b1bfef32ec7a105b0217e8a115687, b6a93a42e0e61f0ba0005a942ee3bffb16c0574e, 99a6f37b113c46815deb160c5012073563679ef4, b99e890e6b32ffa11c145a16fefcf2c7137a9578, 39139b1c1c2b614096519b526112c726adb12ff0 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.