CVE-2026-74733
CVE CVE-2026-74733EUVD EUVD-2026-64420Published 2026-08-22T15:33:21.000ZLast changed 2026-08-25T05:42:11.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: gpio: pca953x: fix pca953x_irq_bus_sync_unlock regmap lock Locking is disabled in the regmap config as this driver uses its own lock. This means that all calls to regmap functions (read or write) must hold the i2c_lock. The function pca953x_irq_bus_sync_unlock() did not do this, and it was therefore possible that multiple threads could cause an incorrect register to be read/written. A previous patch partly fixed this, but only protected the write to the interrupt mask register, and not the read from the direction register.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 7.1.9; de7cffa53149c7b48bd1bb29b02390c9f05b7f41; e2ecdddca80dd845df42376e4b0197fe97018ba2; 6.1.101 <6.2; 58a5c93bd1a6e949267400080f07e57ffe05ec34; patch: 7.2; patch: 0; bfc6444b57dc7186b6acc964705d7516cbaf3904 <9dc325327babe7f159e84cbe9380a45342da0585; bfc6444b57dc7186b6acc964705d7516cbaf3904 <e6a2f5f845f50b0c4299bace5111f56d3390a090; 6.9.11 <6.10; 6.10; 6.6.42 <6.7
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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