{"id":"CVE-2026-97505","state":"PUBLISHED","title":"PCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store()\n\nCurrently, the __resource_resize_store() allows writing to the\nresourceN_resize sysfs attribute to change a BAR's size without checking\nfor capabilities, currently relying only on the file access check.\n\nResizing a BAR modifies PCI device configuration and can disrupt active\ndrivers.  After the upcoming conversion to static attributes, it will also\ntrigger resource file updates via sysfs_update_groups().\n\nAdd a CAP_SYS_ADMIN check to prevent unprivileged users from performing BAR\nresize operations.","publishedAt":"2026-09-24T16:04:54.215Z","updatedAt":"2026-10-30T12:37:07.198Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"91fa127794ac1c48069479b9d45eb4c7378c0e30","status":"affected","lessThan":"0be4e21287e1e4865b9de498e1acc65b873f52f5","versionType":"git"},{"version":"91fa127794ac1c48069479b9d45eb4c7378c0e30","status":"affected","lessThan":"d02dd7ce8e52b66b7d3b6eca2a7d81e7f5b10a62","versionType":"git"},{"version":"91fa127794ac1c48069479b9d45eb4c7378c0e30","status":"affected","lessThan":"b722a607f858b9cd036075ea0efad553fb98e982","versionType":"git"},{"version":"91fa127794ac1c48069479b9d45eb4c7378c0e30","status":"affected","lessThan":"cbf0628c0b7db86c5ce36451f088101546acbf1d","versionType":"git"},{"version":"91fa127794ac1c48069479b9d45eb4c7378c0e30","status":"affected","lessThan":"25ec7f57deceec633f27bc93b615f951e2ade814","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-sysfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-sysfs.c"]}],"references":["https://git.kernel.org/stable/c/0be4e21287e1e4865b9de498e1acc65b873f52f5","https://git.kernel.org/stable/c/d02dd7ce8e52b66b7d3b6eca2a7d81e7f5b10a62","https://git.kernel.org/stable/c/b722a607f858b9cd036075ea0efad553fb98e982","https://git.kernel.org/stable/c/cbf0628c0b7db86c5ce36451f088101546acbf1d","https://git.kernel.org/stable/c/25ec7f57deceec633f27bc93b615f951e2ade814"],"weaknesses":[],"ingestedAt":"2026-10-30T12:56:04.490Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/97xxx/CVE-2026-97505.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-97505","state":"PUBLISHED","datePublished":"2026-09-24T16:04:54.215Z","dateUpdated":"2026-10-30T12:37:07.198Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-24T16:01:01.151Z"},"containers":{"cna":{"title":"PCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI/sysfs: Add CAP_SYS_ADMIN check to __resource_resize_store()\n\nCurrently, the __resource_resize_store() allows writing to the\nresourceN_resize sysfs attribute to change a BAR's size without checking\nfor capabilities, currently relying only on the file access check.\n\nResizing a BAR modifies PCI device configuration and can disrupt active\ndrivers.  After the upcoming conversion to static attributes, it will also\ntrigger resource file updates via sysfs_update_groups().\n\nAdd a CAP_SYS_ADMIN check to prevent unprivileged users from performing BAR\nresize operations."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"91fa127794ac1c48069479b9d45eb4c7378c0e30","status":"affected","lessThan":"0be4e21287e1e4865b9de498e1acc65b873f52f5","versionType":"git"},{"version":"91fa127794ac1c48069479b9d45eb4c7378c0e30","status":"affected","lessThan":"d02dd7ce8e52b66b7d3b6eca2a7d81e7f5b10a62","versionType":"git"},{"version":"91fa127794ac1c48069479b9d45eb4c7378c0e30","status":"affected","lessThan":"b722a607f858b9cd036075ea0efad553fb98e982","versionType":"git"},{"version":"91fa127794ac1c48069479b9d45eb4c7378c0e30","status":"affected","lessThan":"cbf0628c0b7db86c5ce36451f088101546acbf1d","versionType":"git"},{"version":"91fa127794ac1c48069479b9d45eb4c7378c0e30","status":"affected","lessThan":"25ec7f57deceec633f27bc93b615f951e2ade814","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-sysfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/pci-sysfs.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0be4e21287e1e4865b9de498e1acc65b873f52f5"},{"url":"https://git.kernel.org/stable/c/d02dd7ce8e52b66b7d3b6eca2a7d81e7f5b10a62"},{"url":"https://git.kernel.org/stable/c/b722a607f858b9cd036075ea0efad553fb98e982"},{"url":"https://git.kernel.org/stable/c/cbf0628c0b7db86c5ce36451f088101546acbf1d"},{"url":"https://git.kernel.org/stable/c/25ec7f57deceec633f27bc93b615f951e2ade814"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:37:07.198Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}