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-2026-64528",
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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": "2026-07-19T15:36:31.794Z",
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"datePublished": "2026-07-25T09:20:51.774Z",
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"dateUpdated": "2026-07-25T09:20:51.774Z"
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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": "2026-07-25T09:20:51.774Z"
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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\ntty: serial: samsung: Remove redundant port lock acquisition in rx helpers\n\nSashiko identified a deadlock when the console flow is engaged [1].\n\nWhen console flow control is enabled (UPF_CONS_FLOW),\ns3c24xx_serial_stop_tx() calls s3c24xx_serial_rx_enable() and\ns3c24xx_serial_start_tx() calls s3c24xx_serial_rx_disable().\n\nThe serial core framework invokes the .stop_tx() and .start_tx()\ncallbacks with the port->lock spinlock already held. Furthermore, all\ninternal driver paths that invoke stop_tx (such as the DMA TX\ncompletion handler s3c24xx_serial_tx_dma_complete() or the PIO TX IRQ\nhandler s3c24xx_serial_tx_irq()) also acquire port->lock prior to\ncalling it. (Note that s3c24xx_serial_start_tx() is only invoked by the\nserial core).\n\nHowever, s3c24xx_serial_rx_enable() and s3c24xx_serial_rx_disable()\nunconditionally attempt to acquire port->lock again using\nuart_port_lock_irqsave(). Since spinlocks are not recursive, this\ncauses a deadlock on the same CPU when console flow control is engaged.\n\nRemove the redundant lock acquisition from both rx helper functions."
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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/tty/serial/samsung_tty.c"
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],
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"versions": [
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{
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"version": "b497549a035c2a81b71c7a27f2b00c8a16c09423",
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"lessThan": "ee9eb72be95490602c493db050c73d925c3a4d74",
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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": "b497549a035c2a81b71c7a27f2b00c8a16c09423",
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"lessThan": "10014eb7eee351f7b587f8ac85830f0c9343cb9a",
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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": "b497549a035c2a81b71c7a27f2b00c8a16c09423",
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"lessThan": "f4c3e63fa8639aedf96fb200d9939945a9eed51e",
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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": "b497549a035c2a81b71c7a27f2b00c8a16c09423",
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"lessThan": "a9c22e0f93ba18322a6623ecdda2f0cd858ca350",
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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": "b497549a035c2a81b71c7a27f2b00c8a16c09423",
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"lessThan": "14143ec10d69f42806b5d7b046f0fd1b835831ae",
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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": "b497549a035c2a81b71c7a27f2b00c8a16c09423",
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"lessThan": "9fd48937046efc9abb89379d63ee9cc5c661d711",
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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": "b497549a035c2a81b71c7a27f2b00c8a16c09423",
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"lessThan": "9c92b42207978559e32903c3098aaf5c5b5788b2",
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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": "b497549a035c2a81b71c7a27f2b00c8a16c09423",
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"lessThan": "a3bb136bff5e6a5e48cdd813246c9c4686feaaa9",
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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/tty/serial/samsung_tty.c"
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],
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"versions": [
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{
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"version": "2.6.27",
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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": "2.6.27",
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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": "5.10.259",
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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": "5.15.210",
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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": "6.1.176",
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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": "6.6.143",
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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": "6.12.93",
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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": "6.18.35",
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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": "7.0.12",
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"lessThanOrEqual": "7.0.*",
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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": "7.1",
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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": "2.6.27",
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"versionEndExcluding": "5.10.259"
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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": "2.6.27",
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"versionEndExcluding": "5.15.210"
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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": "2.6.27",
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"versionEndExcluding": "6.1.176"
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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": "2.6.27",
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"versionEndExcluding": "6.6.143"
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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": "2.6.27",
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"versionEndExcluding": "6.12.93"
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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": "2.6.27",
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"versionEndExcluding": "6.18.35"
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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": "2.6.27",
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"versionEndExcluding": "7.0.12"
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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": "2.6.27",
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"versionEndExcluding": "7.1"
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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/ee9eb72be95490602c493db050c73d925c3a4d74"
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},
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{
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"url": "https://git.kernel.org/stable/c/10014eb7eee351f7b587f8ac85830f0c9343cb9a"
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},
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{
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"url": "https://git.kernel.org/stable/c/f4c3e63fa8639aedf96fb200d9939945a9eed51e"
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},
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{
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"url": "https://git.kernel.org/stable/c/a9c22e0f93ba18322a6623ecdda2f0cd858ca350"
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},
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{
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"url": "https://git.kernel.org/stable/c/14143ec10d69f42806b5d7b046f0fd1b835831ae"
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},
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{
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"url": "https://git.kernel.org/stable/c/9fd48937046efc9abb89379d63ee9cc5c661d711"
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},
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{
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"url": "https://git.kernel.org/stable/c/9c92b42207978559e32903c3098aaf5c5b5788b2"
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},
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{
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"url": "https://git.kernel.org/stable/c/a3bb136bff5e6a5e48cdd813246c9c4686feaaa9"
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}
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],
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"title": "tty: serial: samsung: Remove redundant port lock acquisition in rx helpers",
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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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} |