CVE-2026-23357 (GCVE-0-2026-23357)
Vulnerability from cvelistv5
Published
2026-03-25 10:27
Modified
2026-04-18 08:58
Severity ?
VLAI Severity ?
EPSS score ?
Summary
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bf66f3736a945dd4e92d86427276c6eeab0a6c1d Version: bf66f3736a945dd4e92d86427276c6eeab0a6c1d Version: bf66f3736a945dd4e92d86427276c6eeab0a6c1d Version: bf66f3736a945dd4e92d86427276c6eeab0a6c1d Version: bf66f3736a945dd4e92d86427276c6eeab0a6c1d Version: bf66f3736a945dd4e92d86427276c6eeab0a6c1d Version: bf66f3736a945dd4e92d86427276c6eeab0a6c1d Version: bf66f3736a945dd4e92d86427276c6eeab0a6c1d |
||
{
"containers": {
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"programFiles": [
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"versions": [
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"version": "2.6.34"
},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "5.10.253",
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},
{
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"status": "unaffected",
"version": "5.15.203",
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},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.167",
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},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.130",
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},
{
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"status": "unaffected",
"version": "6.12.77",
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},
{
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"status": "unaffected",
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},
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}
]
}
],
"cpeApplicability": [
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: mcp251x: fix deadlock in error path of mcp251x_open\n\nThe mcp251x_open() function call free_irq() in its error path with the\nmpc_lock mutex held. But if an interrupt already occurred the\ninterrupt handler will be waiting for the mpc_lock and free_irq() will\ndeadlock waiting for the handler to finish.\n\nThis issue is similar to the one fixed in commit 7dd9c26bd6cf (\"can:\nmcp251x: fix deadlock if an interrupt occurs during mcp251x_open\") but\nfor the error path.\n\nTo solve this issue move the call to free_irq() after the lock is\nreleased. Setting `priv-\u003eforce_quit = 1` beforehand ensure that the IRQ\nhandler will exit right away once it acquired the lock."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-18T08:58:09.426Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/739454057572cb0948658d1142f3fa2c6966465c"
},
{
"url": "https://git.kernel.org/stable/c/416c18ecddafab0ed09be1e7b9d2f448f3d4db16"
},
{
"url": "https://git.kernel.org/stable/c/256f0cff6e946c570392bda1d01a65e789a7afd0"
},
{
"url": "https://git.kernel.org/stable/c/b73832292cd914e87a55e863ba4413a907e7db6b"
},
{
"url": "https://git.kernel.org/stable/c/38063cc435b69d56e76f947c10d336fcb2953508"
},
{
"url": "https://git.kernel.org/stable/c/d27f12c3f5e85efc479896af4a69eccb37f75e8e"
},
{
"url": "https://git.kernel.org/stable/c/e728f444c913a91d290d1824b4770780bbd6378e"
},
{
"url": "https://git.kernel.org/stable/c/ab3f894de216f4a62adc3b57e9191888cbf26885"
}
],
"title": "can: mcp251x: fix deadlock in error path of mcp251x_open",
"x_generator": {
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}
}
},
"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-23357",
"datePublished": "2026-03-25T10:27:41.299Z",
"dateReserved": "2026-01-13T15:37:46.000Z",
"dateUpdated": "2026-04-18T08:58:09.426Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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