{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74514","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-15T05:44:03.909Z","datePublished":"2026-08-15T12:27:34.947Z","dateUpdated":"2026-08-23T12:47:32.122Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-23T12:47:32.122Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: pci: Fix memory accounting for pinned/unpinned pages\n\nThe account_mem() and unaccount_mem() functions call get_uid() which\nincrements the reference count of struct user_struct on every invocation.\nBut we don't decrement the count by calling free_uid(). It also\naccounted/unaccounted the pages against the current->mm. But its possible\nthe unaccount_mem() can be called from a different process context than the\none that originally pinned the pages.\n\nLet's fix this by storing the pinning process user_struct and mm_struct\nwhen accounting for pinned pages, and subsequently free these resources\nwhen the pages are unpinned.\n\n[borntraeger@linux.ibm.com: Fixed whitespace]"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kvm/pci.c","arch/s390/kvm/pci.h"],"versions":[{"version":"3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc","lessThan":"ad1c2ac7f15b224cf9ab26b593caa9bd1a4be72e","status":"affected","versionType":"git"},{"version":"3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc","lessThan":"dc7465a364104526c56b922c9de9dfcc08a7d5f7","status":"affected","versionType":"git"},{"version":"3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc","lessThan":"47cfd75d9df7c8f425b0d769328fe43a8a8e606e","status":"affected","versionType":"git"},{"version":"3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc","lessThan":"70871b121f81d08879363cb1238a4c85c5c2800c","status":"affected","versionType":"git"},{"version":"3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc","lessThan":"e3f732e086e438c52c7400bd2734bb166aa4752c","status":"affected","versionType":"git"},{"version":"3c5a1b6f0a18520a0edd0600fef6f1a8553b8fdc","lessThan":"36f6999ecde3976731a8bfc0b8e667da6f593069","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kvm/pci.c","arch/s390/kvm/pci.h"],"versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","status":"unaffected","versionType":"semver"},{"version":"6.1.184","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.152","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.104","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.44","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.8","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.184"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.152"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12.104"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.18.44"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.1.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ad1c2ac7f15b224cf9ab26b593caa9bd1a4be72e"},{"url":"https://git.kernel.org/stable/c/dc7465a364104526c56b922c9de9dfcc08a7d5f7"},{"url":"https://git.kernel.org/stable/c/47cfd75d9df7c8f425b0d769328fe43a8a8e606e"},{"url":"https://git.kernel.org/stable/c/70871b121f81d08879363cb1238a4c85c5c2800c"},{"url":"https://git.kernel.org/stable/c/e3f732e086e438c52c7400bd2734bb166aa4752c"},{"url":"https://git.kernel.org/stable/c/36f6999ecde3976731a8bfc0b8e667da6f593069"}],"title":"KVM: s390: pci: Fix memory accounting for pinned/unpinned pages","x_generator":{"engine":"bippy-1.2.0"}}}}