{"id":"CVE-2026-72037","summary":"net: lan743x: Initialize eth_syslock spinlock before use","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lan743x: Initialize eth_syslock spinlock before use\n\nlan743x_hardware_init() calls pci11x1x_strap_get_status() during the\nPCI11x1x probe sequence. That helper acquires the Ethernet subsystem\nhardware lock via lan743x_hs_syslock_acquire(), which relies on\nadapter-\u003eeth_syslock_spinlock to serialize access.\n\nThe spinlock is currently initialized only after the strap status is\nread. With CONFIG_DEBUG_SPINLOCK enabled, taking the zeroed initialized\nspinlock can trip the spinlock debug check.\n\nFix by initializing adapter-\u003eeth_syslock_spinlock before reading the\nstrap status so the probe path never attempts to lock an uninitialized\nspinlock.","modified":"2026-08-18T03:31:09.573604323Z","published":"2026-08-15T05:51:57.745Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72037.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/39139b1c1c2b614096519b526112c726adb12ff0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6523daa6852b1bfef32ec7a105b0217e8a115687"},{"type":"WEB","url":"https://git.kernel.org/stable/c/99a6f37b113c46815deb160c5012073563679ef4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b6a93a42e0e61f0ba0005a942ee3bffb16c0574e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b99e890e6b32ffa11c145a16fefcf2c7137a9578"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dfaefd9a7808736fcd2ed0de108f55c4badc15cc"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72037.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72037"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"46b777ad9a8c269113634cee6a380bc4e53f3964"},{"fixed":"dfaefd9a7808736fcd2ed0de108f55c4badc15cc"},{"fixed":"6523daa6852b1bfef32ec7a105b0217e8a115687"},{"fixed":"b6a93a42e0e61f0ba0005a942ee3bffb16c0574e"},{"fixed":"99a6f37b113c46815deb160c5012073563679ef4"},{"fixed":"b99e890e6b32ffa11c145a16fefcf2c7137a9578"},{"fixed":"39139b1c1c2b614096519b526112c726adb12ff0"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72037.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72037.json"}}],"schema_version":"1.9.0"}