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vuln-cve/data/2024/57xxx/CVE-2024-57889.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2024-57889",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-01-11T14:45:42.027Z",
"datePublished": "2025-01-15T13:05:41.769Z",
"dateUpdated": "2026-05-11T20:59:51.473Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T20:59:51.473Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: mcp23s08: Fix sleeping in atomic context due to regmap locking\n\nIf a device uses MCP23xxx IO expander to receive IRQs, the following\nbug can happen:\n\n BUG: sleeping function called from invalid context\n at kernel/locking/mutex.c:283\n in_atomic(): 1, irqs_disabled(): 1, non_block: 0, ...\n preempt_count: 1, expected: 0\n ...\n Call Trace:\n ...\n __might_resched+0x104/0x10e\n __might_sleep+0x3e/0x62\n mutex_lock+0x20/0x4c\n regmap_lock_mutex+0x10/0x18\n regmap_update_bits_base+0x2c/0x66\n mcp23s08_irq_set_type+0x1ae/0x1d6\n __irq_set_trigger+0x56/0x172\n __setup_irq+0x1e6/0x646\n request_threaded_irq+0xb6/0x160\n ...\n\nWe observed the problem while experimenting with a touchscreen driver which\nused MCP23017 IO expander (I2C).\n\nThe regmap in the pinctrl-mcp23s08 driver uses a mutex for protection from\nconcurrent accesses, which is the default for regmaps without .fast_io,\n.disable_locking, etc.\n\nmcp23s08_irq_set_type() calls regmap_update_bits_base(), and the latter\nlocks the mutex.\n\nHowever, __setup_irq() locks desc->lock spinlock before calling these\nfunctions. As a result, the system tries to lock the mutex whole holding\nthe spinlock.\n\nIt seems, the internal regmap locks are not needed in this driver at all.\nmcp->lock seems to protect the regmap from concurrent accesses already,\nexcept, probably, in mcp_pinconf_get/set.\n\nmcp23s08_irq_set_type() and mcp23s08_irq_mask/unmask() are called under\nchip_bus_lock(), which calls mcp23s08_irq_bus_lock(). The latter takes\nmcp->lock and enables regmap caching, so that the potentially slow I2C\naccesses are deferred until chip_bus_unlock().\n\nThe accesses to the regmap from mcp23s08_probe_one() do not need additional\nlocking.\n\nIn all remaining places where the regmap is accessed, except\nmcp_pinconf_get/set(), the driver already takes mcp->lock.\n\nThis patch adds locking in mcp_pinconf_get/set() and disables internal\nlocking in the regmap config. Among other things, it fixes the sleeping\nin atomic context described above."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/pinctrl/pinctrl-mcp23s08.c"
],
"versions": [
{
"version": "8f38910ba4f662222157ce07a0d5becc4328c46a",
"lessThan": "788d9e9a41b81893d6bb8faa05f045c975278318",
"status": "affected",
"versionType": "git"
},
{
"version": "8f38910ba4f662222157ce07a0d5becc4328c46a",
"lessThan": "c55d186376a87b468c9ee30f2195e0f3857f61a0",
"status": "affected",
"versionType": "git"
},
{
"version": "8f38910ba4f662222157ce07a0d5becc4328c46a",
"lessThan": "9372e160d8211a7e17f2abff8370794f182df785",
"status": "affected",
"versionType": "git"
},
{
"version": "8f38910ba4f662222157ce07a0d5becc4328c46a",
"lessThan": "0310cbad163a908d09d99c26827859365cd71fcb",
"status": "affected",
"versionType": "git"
},
{
"version": "8f38910ba4f662222157ce07a0d5becc4328c46a",
"lessThan": "8c6fd5803b988a5e78c9b9e42c70a936d7cfc6ec",
"status": "affected",
"versionType": "git"
},
{
"version": "8f38910ba4f662222157ce07a0d5becc4328c46a",
"lessThan": "830f838589522404cd7c2f0f540602f25034af61",
"status": "affected",
"versionType": "git"
},
{
"version": "8f38910ba4f662222157ce07a0d5becc4328c46a",
"lessThan": "a37eecb705f33726f1fb7cd2a67e514a15dfe693",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/pinctrl/pinctrl-mcp23s08.c"
],
"versions": [
{
"version": "4.13",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.13",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.289",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.233",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.176",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.124",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.70",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.9",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.13",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.13",
"versionEndExcluding": "5.4.289"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.13",
"versionEndExcluding": "5.10.233"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.13",
"versionEndExcluding": "5.15.176"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.13",
"versionEndExcluding": "6.1.124"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.13",
"versionEndExcluding": "6.6.70"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.13",
"versionEndExcluding": "6.12.9"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.13",
"versionEndExcluding": "6.13"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/788d9e9a41b81893d6bb8faa05f045c975278318"
},
{
"url": "https://git.kernel.org/stable/c/c55d186376a87b468c9ee30f2195e0f3857f61a0"
},
{
"url": "https://git.kernel.org/stable/c/9372e160d8211a7e17f2abff8370794f182df785"
},
{
"url": "https://git.kernel.org/stable/c/0310cbad163a908d09d99c26827859365cd71fcb"
},
{
"url": "https://git.kernel.org/stable/c/8c6fd5803b988a5e78c9b9e42c70a936d7cfc6ec"
},
{
"url": "https://git.kernel.org/stable/c/830f838589522404cd7c2f0f540602f25034af61"
},
{
"url": "https://git.kernel.org/stable/c/a37eecb705f33726f1fb7cd2a67e514a15dfe693"
}
],
"title": "pinctrl: mcp23s08: Fix sleeping in atomic context due to regmap locking",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"title": "CVE Program Container",
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
}
],
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2025-11-03T20:54:59.702Z"
}
}
]
}
}
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