Answer in brief
CVE-2024-42253 records a High severity (CVSS 7.8) vulnerability in gpio: pca953x: fix pca953x_irq_bus_sync_unlock race. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=44896beae605b93f2232301befccb7ef42953198 <58a5c93bd1a6e949267400080f07e57ffe05ec34 || >=44896beae605b93f2232301befccb7ef42953198 <e2ecdddca80dd845df42376e4b0197fe97018ba2 || >=44896beae605b93f2232301befccb7ef42953198 <de7cffa53149c7b48bd1bb29b02390c9f05b7f41 || >=44896beae605b93f2232301befccb7ef42953198 <bfc6444b57dc7186b6acc964705d7516cbaf3904 | 58a5c93bd1a6e949267400080f07e57ffe05ec34, e2ecdddca80dd845df42376e4b0197fe97018ba2, de7cffa53149c7b48bd1bb29b02390c9f05b7f41, bfc6444b57dc7186b6acc964705d7516cbaf3904 |
| Linux/Linuxgeneric | 4.7 | Not reported |
Published upstream
Aug 8, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: gpio: pca953x: fix pca953x_irq_bus_sync_unlock race Ensure that `i2c_lock' is held when setting interrupt latch and mask in pca953x_irq_bus_sync_unlock() in order to avoid races. The other (non-probe) call site pca953x_gpio_set_multiple() ensures the lock is held before calling pca953x_write_regs(). The problem occurred when a request raced against irq_bus_sync_unlock() approximately once per thousand reboots on an i.MX8MP based system. * Normal case 0-0022: write register AI|3a {03,02,00,00,01} Input latch P0 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0 0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|12 {fc,00,00,00,00} Config P3 * Race case 0-0022: write register AI|08 {ff,00,00,00,00} Output P3 0-0022: write register AI|08 {03,02,00,00,01} *** Wrong register *** 0-0022: write register AI|12 {fc,00,00,00,00} Config P3 0-0022: write register AI|49 {fc,fd,ff,ff,fe} Interrupt mask P0
Quoted source text, attributed separately from HOL analysis.