can: mcp251x: fix deadlock in error path of mcp251x_open
Summary
| CVE | CVE-2026-23357 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-03-25 11:16:34 UTC |
| Updated | 2026-04-18 09:16:20 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: can: mcp251x: fix deadlock in error path of mcp251x_open The mcp251x_open() function call free_irq() in its error path with the mpc_lock mutex held. But if an interrupt already occurred the interrupt handler will be waiting for the mpc_lock and free_irq() will deadlock waiting for the handler to finish. This issue is similar to the one fixed in commit 7dd9c26bd6cf ("can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open") but for the error path. To solve this issue move the call to free_irq() after the lock is released. Setting `priv->force_quit = 1` beforehand ensure that the IRQ handler will exit right away once it acquired the lock. |
Risk And Classification
EPSS: 0.000320000 probability, percentile 0.090980000 (date 2026-04-18)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected bf66f3736a945dd4e92d86427276c6eeab0a6c1d 739454057572cb0948658d1142f3fa2c6966465c git | Not specified |
| CNA | Linux | Linux | affected bf66f3736a945dd4e92d86427276c6eeab0a6c1d 416c18ecddafab0ed09be1e7b9d2f448f3d4db16 git | Not specified |
| CNA | Linux | Linux | affected bf66f3736a945dd4e92d86427276c6eeab0a6c1d 256f0cff6e946c570392bda1d01a65e789a7afd0 git | Not specified |
| CNA | Linux | Linux | affected bf66f3736a945dd4e92d86427276c6eeab0a6c1d b73832292cd914e87a55e863ba4413a907e7db6b git | Not specified |
| CNA | Linux | Linux | affected bf66f3736a945dd4e92d86427276c6eeab0a6c1d 38063cc435b69d56e76f947c10d336fcb2953508 git | Not specified |
| CNA | Linux | Linux | affected bf66f3736a945dd4e92d86427276c6eeab0a6c1d d27f12c3f5e85efc479896af4a69eccb37f75e8e git | Not specified |
| CNA | Linux | Linux | affected bf66f3736a945dd4e92d86427276c6eeab0a6c1d e728f444c913a91d290d1824b4770780bbd6378e git | Not specified |
| CNA | Linux | Linux | affected bf66f3736a945dd4e92d86427276c6eeab0a6c1d ab3f894de216f4a62adc3b57e9191888cbf26885 git | Not specified |
| CNA | Linux | Linux | affected 2.6.34 | Not specified |
| CNA | Linux | Linux | unaffected 2.6.34 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.253 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.203 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.167 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.130 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.77 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.17 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.19.7 6.19.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/256f0cff6e946c570392bda1d01a65e789a7afd0 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/ab3f894de216f4a62adc3b57e9191888cbf26885 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/416c18ecddafab0ed09be1e7b9d2f448f3d4db16 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b73832292cd914e87a55e863ba4413a907e7db6b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/38063cc435b69d56e76f947c10d336fcb2953508 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/739454057572cb0948658d1142f3fa2c6966465c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/d27f12c3f5e85efc479896af4a69eccb37f75e8e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e728f444c913a91d290d1824b4770780bbd6378e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.