CVE-2022-49569 (GCVE-0-2022-49569)
Vulnerability from cvelistv5
Published
2025-02-26 02:23
Modified
2025-05-04 08:40
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers
In case a IRQ based transfer times out the bcm2835_spi_handle_err()
function is called. Since commit 1513ceee70f2 ("spi: bcm2835: Drop
dma_pending flag") the TX and RX DMA transfers are unconditionally
canceled, leading to NULL pointer derefs if ctlr->dma_tx or
ctlr->dma_rx are not set.
Fix the NULL pointer deref by checking that ctlr->dma_tx and
ctlr->dma_rx are valid pointers before accessing them.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ▼ | Linux | Linux |
Version: 1513ceee70f2bd523e025efe0c715328e1a43ffd Version: 1513ceee70f2bd523e025efe0c715328e1a43ffd Version: 1513ceee70f2bd523e025efe0c715328e1a43ffd Version: 1513ceee70f2bd523e025efe0c715328e1a43ffd Version: 1513ceee70f2bd523e025efe0c715328e1a43ffd |
||||||
|
|||||||||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/spi/spi-bcm2835.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "76668d2a2f367d25ff448e6d7087406af7d7bb2b",
"status": "affected",
"version": "1513ceee70f2bd523e025efe0c715328e1a43ffd",
"versionType": "git"
},
{
"lessThan": "684896e675edd8b669fd3e9f547c5038222d85bc",
"status": "affected",
"version": "1513ceee70f2bd523e025efe0c715328e1a43ffd",
"versionType": "git"
},
{
"lessThan": "58466e05390043d2805685c70f55f3f59711bdf2",
"status": "affected",
"version": "1513ceee70f2bd523e025efe0c715328e1a43ffd",
"versionType": "git"
},
{
"lessThan": "49ffa473218012e765682343de2052eb4c1f06a7",
"status": "affected",
"version": "1513ceee70f2bd523e025efe0c715328e1a43ffd",
"versionType": "git"
},
{
"lessThan": "4ceaa684459d414992acbefb4e4c31f2dfc50641",
"status": "affected",
"version": "1513ceee70f2bd523e025efe0c715328e1a43ffd",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/spi/spi-bcm2835.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.4"
},
{
"lessThan": "5.4",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.208",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.134",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.58",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.18.*",
"status": "unaffected",
"version": "5.18.15",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "5.19",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.208",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.134",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.58",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.18.15",
"versionStartIncluding": "5.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.19",
"versionStartIncluding": "5.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers\n\nIn case a IRQ based transfer times out the bcm2835_spi_handle_err()\nfunction is called. Since commit 1513ceee70f2 (\"spi: bcm2835: Drop\ndma_pending flag\") the TX and RX DMA transfers are unconditionally\ncanceled, leading to NULL pointer derefs if ctlr-\u003edma_tx or\nctlr-\u003edma_rx are not set.\n\nFix the NULL pointer deref by checking that ctlr-\u003edma_tx and\nctlr-\u003edma_rx are valid pointers before accessing them."
}
],
"providerMetadata": {
"dateUpdated": "2025-05-04T08:40:50.800Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/76668d2a2f367d25ff448e6d7087406af7d7bb2b"
},
{
"url": "https://git.kernel.org/stable/c/684896e675edd8b669fd3e9f547c5038222d85bc"
},
{
"url": "https://git.kernel.org/stable/c/58466e05390043d2805685c70f55f3f59711bdf2"
},
{
"url": "https://git.kernel.org/stable/c/49ffa473218012e765682343de2052eb4c1f06a7"
},
{
"url": "https://git.kernel.org/stable/c/4ceaa684459d414992acbefb4e4c31f2dfc50641"
}
],
"title": "spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-49569",
"datePublished": "2025-02-26T02:23:13.209Z",
"dateReserved": "2025-02-26T02:21:30.410Z",
"dateUpdated": "2025-05-04T08:40:50.800Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2022-49569\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:01:32.607\",\"lastModified\":\"2025-03-10T21:11:35.827\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nspi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers\\n\\nIn case a IRQ based transfer times out the bcm2835_spi_handle_err()\\nfunction is called. Since commit 1513ceee70f2 (\\\"spi: bcm2835: Drop\\ndma_pending flag\\\") the TX and RX DMA transfers are unconditionally\\ncanceled, leading to NULL pointer derefs if ctlr-\u003edma_tx or\\nctlr-\u003edma_rx are not set.\\n\\nFix the NULL pointer deref by checking that ctlr-\u003edma_tx and\\nctlr-\u003edma_rx are valid pointers before accessing them.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: spi: bcm2835: bcm2835_spi_handle_err(): corrige la desreferencia del puntero NULL para transferencias que no sean DMA En caso de que se agote el tiempo de espera de una transferencia basada en IRQ, se llama a la funci\u00f3n bcm2835_spi_handle_err(). Desde el commit 1513ceee70f2 (\\\"spi: bcm2835: Drop dma_pending flag\\\") las transferencias DMA TX y RX se cancelan incondicionalmente, lo que lleva a desreferencias del puntero NULL si no se configuran ctlr-\u0026gt;dma_tx o ctlr-\u0026gt;dma_rx. Corrija la desreferencia del puntero NULL comprobando que ctlr-\u0026gt;dma_tx y ctlr-\u0026gt;dma_rx sean punteros v\u00e1lidos antes de acceder a ellos.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.4\",\"versionEndExcluding\":\"5.4.208\",\"matchCriteriaId\":\"7E96E649-47EC-458E-8AC7-5A642A2EF7A6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.134\",\"matchCriteriaId\":\"4B697B47-6B36-47E0-95DC-054EC4633DEA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.58\",\"matchCriteriaId\":\"13CF20C8-4DA9-4A21-AD13-7A5C22E5FB05\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.18.15\",\"matchCriteriaId\":\"EAD6B571-194C-43A2-A4AB-F68F869D13BC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"A8C30C2D-F82D-4D37-AB48-D76ABFBD5377\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"BF8547FC-C849-4F1B-804B-A93AE2F04A92\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F3068028-F453-4A1C-B80F-3F5609ACEF60\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"2E9C0DB0-D349-489F-A3D6-B77214E93A8A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"1A0DE3B7-0FFB-45AA-9BD6-19870CA7C6FD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"00AE778B-BAEE-49EB-9F84-003B73D7862A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.19:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"C178431E-AD82-4B3D-B70F-A273A02ABD5D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/49ffa473218012e765682343de2052eb4c1f06a7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4ceaa684459d414992acbefb4e4c31f2dfc50641\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/58466e05390043d2805685c70f55f3f59711bdf2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/684896e675edd8b669fd3e9f547c5038222d85bc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/76668d2a2f367d25ff448e6d7087406af7d7bb2b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
}
}