248 lines
12 KiB
JSON
248 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-43458",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-05-01T14:12:56.010Z",
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"datePublished": "2026-05-08T14:22:21.997Z",
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"dateUpdated": "2026-05-11T22:24:58.635Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T22:24:58.635Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nserial: caif: hold tty->link reference in ldisc_open and ser_release\n\nA reproducer triggers a KASAN slab-use-after-free in pty_write_room()\nwhen caif_serial's TX path calls tty_write_room(). The faulting access\nis on tty->link->port.\n\nHold an extra kref on tty->link for the lifetime of the caif_serial line\ndiscipline: get it in ldisc_open() and drop it in ser_release(), and\nalso drop it on the ldisc_open() error path.\n\nWith this change applied, the reproducer no longer triggers the UAF in\nmy testing."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/caif/caif_serial.c"
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],
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"versions": [
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{
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"version": "e31d5a05948e4478ba8396063d1e1f39880928e2",
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"lessThan": "23a3ac2e2262a291498567418227b99e1f3606b1",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e31d5a05948e4478ba8396063d1e1f39880928e2",
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"lessThan": "52135420e9f75853ea0c6cea7b736e3e98495f7d",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e31d5a05948e4478ba8396063d1e1f39880928e2",
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"lessThan": "ca2ceba983bb23ea0202c2882d963253416654a3",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e31d5a05948e4478ba8396063d1e1f39880928e2",
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"lessThan": "8460187b4852fd00bd1c76394358053f3fa4d089",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e31d5a05948e4478ba8396063d1e1f39880928e2",
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"lessThan": "27e43356d0defb9fc7fa25265219a3ffeb7b3e98",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e31d5a05948e4478ba8396063d1e1f39880928e2",
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"lessThan": "35b58d3bc716ebb9ebd10fe1cac8c1177242511c",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e31d5a05948e4478ba8396063d1e1f39880928e2",
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"lessThan": "97a0bb491cae39478c6225381f14e9ac67b7bba7",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "e31d5a05948e4478ba8396063d1e1f39880928e2",
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"lessThan": "288598d80a068a0e9281de35bcb4ce495f189e2a",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/caif/caif_serial.c"
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],
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"versions": [
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{
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"version": "2.6.35",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "2.6.35",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.253",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.203",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.167",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.130",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.78",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.19",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19.9",
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"lessThanOrEqual": "6.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.35",
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"versionEndExcluding": "5.10.253"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.35",
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"versionEndExcluding": "5.15.203"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.35",
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"versionEndExcluding": "6.1.167"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.35",
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"versionEndExcluding": "6.6.130"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.35",
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"versionEndExcluding": "6.12.78"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.35",
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"versionEndExcluding": "6.18.19"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.35",
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"versionEndExcluding": "6.19.9"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.35",
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"versionEndExcluding": "7.0"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/23a3ac2e2262a291498567418227b99e1f3606b1"
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},
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{
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"url": "https://git.kernel.org/stable/c/52135420e9f75853ea0c6cea7b736e3e98495f7d"
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},
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{
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"url": "https://git.kernel.org/stable/c/ca2ceba983bb23ea0202c2882d963253416654a3"
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},
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{
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"url": "https://git.kernel.org/stable/c/8460187b4852fd00bd1c76394358053f3fa4d089"
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},
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{
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"url": "https://git.kernel.org/stable/c/27e43356d0defb9fc7fa25265219a3ffeb7b3e98"
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},
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{
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"url": "https://git.kernel.org/stable/c/35b58d3bc716ebb9ebd10fe1cac8c1177242511c"
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},
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{
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"url": "https://git.kernel.org/stable/c/97a0bb491cae39478c6225381f14e9ac67b7bba7"
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},
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{
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"url": "https://git.kernel.org/stable/c/288598d80a068a0e9281de35bcb4ce495f189e2a"
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}
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],
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"title": "serial: caif: hold tty->link reference in ldisc_open and ser_release",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |