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-2026-98314",
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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": "2026-09-25T10:25:14.339Z",
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"datePublished": "2026-10-06T08:46:09.965Z",
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"dateUpdated": "2026-10-19T09:17:24.800Z"
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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": "2026-10-19T09:17:24.800Z"
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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\nALSA: pcm: set timer->private_data before registering the PCM timer\n\nsnd_pcm_timer_init() calls snd_device_register() to link the new\nstruct snd_timer into the global timer list while it still carries\nhw.c_resolution = snd_pcm_timer_resolution (and hw.start/hw.stop),\nand only afterwards sets timer->private_data = substream.\n\nOnce the timer is on the list under register_mutex, a concurrent\nreader can already reach it through the same mutex and invoke these\ncallbacks. /proc/asound/timers does this via c_resolution(), and\nsnd_timer_open()+snd_timer_start() reach start()/stop() the same way.\nAll three dereference timer->private_data, which for this brief\nwindow is NULL, giving a NULL-pointer dereference:\n\n substream = timer->private_data;\n return substream->runtime ? ... // substream is NULL\n\nMove the private_data/private_free assignment before\nsnd_device_register() so the timer is never visible on the list\nwithout its private_data set. On the snd_device_register() failure\npath, private_free() (snd_pcm_timer_free()) can now run, but it only\ndoes substream->timer = NULL, which is already NULL at that point\nsince substream->timer is set to the new timer just once, after a\nsuccessful registration -- so the failure path stays safe."
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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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"sound/core/pcm_timer.c"
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],
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"versions": [
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{
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"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "27f167e117eca310661fbcbacb352ea08face067",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "555d168bd98daa46daccc68c908201388c834293",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "8c869d5cf5affb20994bdbb60e7d46d65c91b55f",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "686c7a6af1eea8d2a919303e4c6bbec3de79dbdc",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "e1eee8f16628f8b6bcae0a366fd6a2dd65e71edd",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "d63f5a9f8121fb43c798056d7dd34c58f47185d7",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "0b349249d572633d7c8cdeb917623d1676a2b7c3",
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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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
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"lessThan": "1e713f9bb2ac583521f06b0eb4e22440b1e3d078",
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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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"sound/core/pcm_timer.c"
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],
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"versions": [
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{
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"version": "2.6.12",
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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": "2.6.12",
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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": "5.10.271",
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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": "5.15.222",
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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": "6.1.189",
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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": "6.6.158",
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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": "6.12.112",
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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": "6.18.54",
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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": "7.2.8",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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": "2.6.12",
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"versionEndExcluding": "5.10.271"
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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": "2.6.12",
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"versionEndExcluding": "5.15.222"
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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": "2.6.12",
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"versionEndExcluding": "6.1.189"
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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": "2.6.12",
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"versionEndExcluding": "6.6.158"
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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": "2.6.12",
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"versionEndExcluding": "6.12.112"
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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": "2.6.12",
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"versionEndExcluding": "6.18.54"
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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": "2.6.12",
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"versionEndExcluding": "7.2.8"
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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": "2.6.12",
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"versionEndExcluding": "7.3"
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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/27f167e117eca310661fbcbacb352ea08face067"
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},
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{
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"url": "https://git.kernel.org/stable/c/555d168bd98daa46daccc68c908201388c834293"
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},
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{
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"url": "https://git.kernel.org/stable/c/8c869d5cf5affb20994bdbb60e7d46d65c91b55f"
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},
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{
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"url": "https://git.kernel.org/stable/c/686c7a6af1eea8d2a919303e4c6bbec3de79dbdc"
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},
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{
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"url": "https://git.kernel.org/stable/c/e1eee8f16628f8b6bcae0a366fd6a2dd65e71edd"
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},
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{
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"url": "https://git.kernel.org/stable/c/d63f5a9f8121fb43c798056d7dd34c58f47185d7"
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},
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{
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"url": "https://git.kernel.org/stable/c/0b349249d572633d7c8cdeb917623d1676a2b7c3"
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},
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{
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"url": "https://git.kernel.org/stable/c/1e713f9bb2ac583521f06b0eb4e22440b1e3d078"
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}
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],
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"title": "ALSA: pcm: set timer->private_data before registering the PCM timer",
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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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} |