385 lines
18 KiB
JSON
385 lines
18 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-2026-53385",
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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": "2026-06-09T07:44:35.401Z",
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"datePublished": "2026-07-19T11:59:32.732Z",
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"dateUpdated": "2026-11-06T16:34:23.682Z"
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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": "2026-08-17T04:50:36.006Z"
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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\nvc_screen: fix null-ptr-deref in vcs_notifier() during concurrent vcs_write\n\nA KASAN null-ptr-deref was observed in vcs_notifier():\n\nBUG: KASAN: null-ptr-deref in vcs_notifier+0x98/0x130\nRead of size 2 at addr qmp_cmd_name: qmp_capabilities, arguments: {}\n\nThe issue is a race condition in vcs_write(). When the console_lock is\ntemporarily dropped (to copy data from userspace), the vc_data pointer\nobtained from vcs_vc() may become stale. After re-acquiring the lock,\nvcs_vc() is called again to re-validate the pointer. If the vc has been\ndeallocated in the meantime, vcs_vc() returns NULL, and the while loop\nbreaks (with written > 0). However, after the loop, vcs_scr_updated(vc)\nis still called with the now-NULL vc pointer, leading to a null pointer\ndereference in the notifier chain (vcs_notifier dereferences param->vc).\n\nFix this by adding a NULL check for vc before calling vcs_scr_updated()."
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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/vt/vc_screen.c"
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],
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"versions": [
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{
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"version": "11dddfbb7a4e62489b01074d6c04d9d1b42e4047",
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"lessThan": "43a6281790273c1b0a9ab76609ff0245b968f1e6",
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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": "e3d1adcad5b73c7ed0c7edb35ab68abcaa45cf67",
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"lessThan": "b6bbb85cf45bf0b070e741997fe0af3a772c5ad5",
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"status": "affected",
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},
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{
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"version": "3338d0b9acde770ee588eead5cac32c25e7048fc",
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"lessThan": "ff4806202749a51938236214adc0281481a57366",
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"lessThan": "8232fca738011ca2ec865b46ec721d1796dc0580",
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{
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"version": "8fb9ea65c9d1338b0d2bb0a9122dc942cdd32357",
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"lessThan": "73049768ad57145acd337102c5aa3c788e6642c8",
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{
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"version": "8fb9ea65c9d1338b0d2bb0a9122dc942cdd32357",
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"lessThan": "7cc3dd79777f6ae4625ec37e84dd18a26dc88bde",
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"status": "affected",
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"lessThan": "74be188eb2dc1c99d63986167b9a67d415fe7326",
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{
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"status": "affected",
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},
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{
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"version": "934de9a9b659785fed3e820bc0c813a460c71fea",
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"status": "affected",
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},
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{
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"version": "0deff678157333d775af190f84696336cdcccd6d",
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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": "a4e3c4c65ae8510e01352c9a4347e05c035b2ce2",
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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": "1de42e7653d6714a7507ba6696151a1fa028c69f",
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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": "5.10.181",
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"lessThan": "5.10.260",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "5.15.113",
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"lessThan": "5.15.211",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.1.30",
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"lessThan": "6.1.177",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "4.14.327",
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"lessThan": "4.15",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "4.19.284",
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"lessThan": "4.20",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "5.4.244",
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"lessThan": "5.5",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.3.4",
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"lessThan": "6.4",
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"status": "affected",
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"versionType": "semver"
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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/vt/vc_screen.c"
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],
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"versions": [
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{
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"version": "6.4",
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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": "6.4",
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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": "5.10.260",
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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": "5.15.211",
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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": "6.1.177",
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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": "6.6.144",
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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": "6.12.95",
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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": "6.18.37",
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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": "7.0.14",
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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": "7.1.2",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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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"operator": "OR",
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.10.181",
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"versionEndExcluding": "5.10.260"
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},
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/43a6281790273c1b0a9ab76609ff0245b968f1e6"
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},
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{
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"url": "https://git.kernel.org/stable/c/b6bbb85cf45bf0b070e741997fe0af3a772c5ad5"
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},
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{
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"url": "https://git.kernel.org/stable/c/ff4806202749a51938236214adc0281481a57366"
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},
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{
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"url": "https://git.kernel.org/stable/c/8232fca738011ca2ec865b46ec721d1796dc0580"
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},
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{
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"url": "https://git.kernel.org/stable/c/73049768ad57145acd337102c5aa3c788e6642c8"
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},
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{
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"url": "https://git.kernel.org/stable/c/7cc3dd79777f6ae4625ec37e84dd18a26dc88bde"
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},
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{
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"url": "https://git.kernel.org/stable/c/74be188eb2dc1c99d63986167b9a67d415fe7326"
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},
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{
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"url": "https://git.kernel.org/stable/c/09a43e81279b8da15526da09877134b8bcf618b0"
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},
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{
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"url": "https://git.kernel.org/stable/c/a287620312dc6dcb9a093417a0e589bf30fcf38a"
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}
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],
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"title": "vc_screen: fix null-ptr-deref in vcs_notifier() during concurrent vcs_write",
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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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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-53385",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-06T16:28:26.328997Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-06T16:34:23.682Z"
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}
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}
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]
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}
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} |