{"id":"CVE-2022-50868","state":"PUBLISHED","title":"hwrng: amd - Fix PCI device refcount leak","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: amd - Fix PCI device refcount leak\n\nfor_each_pci_dev() is implemented by pci_get_device(). The comment of\npci_get_device() says that it will increase the reference count for the\nreturned pci_dev and also decrease the reference count for the input\npci_dev @from if it is not NULL.\n\nIf we break for_each_pci_dev() loop with pdev not NULL, we need to call\npci_dev_put() to decrease the reference count. Add the missing\npci_dev_put() for the normal and error path.","publishedAt":"2025-12-30T12:15:39.211Z","updatedAt":"2026-05-11T19:26:40.801Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"f1c97f72ffd504f49882774e2ab689d982dc7afc","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"526c316948819d3ecd2bb20fe5e2580c51a1b760","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"e246f5eff26055bdcb61a2cc99c50af72a19680f","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"1199f8e02941b326c60ab71a63002b7c80e38212","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"5998e5c30e839f73e62cb29e0d9617b0d16ccba3","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"2b79a5e560779b35e1164d57ae35c48b43373082","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"cb348c7908631dd9f60083a0a1542eab055d3edf","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"2e10ecd012ae2b2a374b34f307e9bc1e6096c03d","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"ecadb5b0111ea19fc7c240bb25d424a94471eb7d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/char/hw_random/amd-rng.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.18","versionType":"semver"},{"version":"4.9.337","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.303","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.270","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/char/hw_random/amd-rng.c"]}],"references":["https://git.kernel.org/stable/c/f1c97f72ffd504f49882774e2ab689d982dc7afc","https://git.kernel.org/stable/c/526c316948819d3ecd2bb20fe5e2580c51a1b760","https://git.kernel.org/stable/c/e246f5eff26055bdcb61a2cc99c50af72a19680f","https://git.kernel.org/stable/c/1199f8e02941b326c60ab71a63002b7c80e38212","https://git.kernel.org/stable/c/5998e5c30e839f73e62cb29e0d9617b0d16ccba3","https://git.kernel.org/stable/c/2b79a5e560779b35e1164d57ae35c48b43373082","https://git.kernel.org/stable/c/cb348c7908631dd9f60083a0a1542eab055d3edf","https://git.kernel.org/stable/c/2e10ecd012ae2b2a374b34f307e9bc1e6096c03d","https://git.kernel.org/stable/c/ecadb5b0111ea19fc7c240bb25d424a94471eb7d"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50868.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50868","state":"PUBLISHED","datePublished":"2025-12-30T12:15:39.211Z","dateUpdated":"2026-05-11T19:26:40.801Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-30T12:06:07.136Z"},"containers":{"cna":{"title":"hwrng: amd - Fix PCI device refcount leak","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: amd - Fix PCI device refcount leak\n\nfor_each_pci_dev() is implemented by pci_get_device(). The comment of\npci_get_device() says that it will increase the reference count for the\nreturned pci_dev and also decrease the reference count for the input\npci_dev @from if it is not NULL.\n\nIf we break for_each_pci_dev() loop with pdev not NULL, we need to call\npci_dev_put() to decrease the reference count. Add the missing\npci_dev_put() for the normal and error path."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"f1c97f72ffd504f49882774e2ab689d982dc7afc","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"526c316948819d3ecd2bb20fe5e2580c51a1b760","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"e246f5eff26055bdcb61a2cc99c50af72a19680f","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"1199f8e02941b326c60ab71a63002b7c80e38212","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"5998e5c30e839f73e62cb29e0d9617b0d16ccba3","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"2b79a5e560779b35e1164d57ae35c48b43373082","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"cb348c7908631dd9f60083a0a1542eab055d3edf","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"2e10ecd012ae2b2a374b34f307e9bc1e6096c03d","versionType":"git"},{"version":"96d63c0297ccfd6d9059c614b3f5555d9441a2b3","status":"affected","lessThan":"ecadb5b0111ea19fc7c240bb25d424a94471eb7d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/char/hw_random/amd-rng.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.18","versionType":"semver"},{"version":"4.9.337","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.303","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.270","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/char/hw_random/amd-rng.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f1c97f72ffd504f49882774e2ab689d982dc7afc"},{"url":"https://git.kernel.org/stable/c/526c316948819d3ecd2bb20fe5e2580c51a1b760"},{"url":"https://git.kernel.org/stable/c/e246f5eff26055bdcb61a2cc99c50af72a19680f"},{"url":"https://git.kernel.org/stable/c/1199f8e02941b326c60ab71a63002b7c80e38212"},{"url":"https://git.kernel.org/stable/c/5998e5c30e839f73e62cb29e0d9617b0d16ccba3"},{"url":"https://git.kernel.org/stable/c/2b79a5e560779b35e1164d57ae35c48b43373082"},{"url":"https://git.kernel.org/stable/c/cb348c7908631dd9f60083a0a1542eab055d3edf"},{"url":"https://git.kernel.org/stable/c/2e10ecd012ae2b2a374b34f307e9bc1e6096c03d"},{"url":"https://git.kernel.org/stable/c/ecadb5b0111ea19fc7c240bb25d424a94471eb7d"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:26:40.801Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.18","versionEndExcluding":"4.9.337"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.18","versionEndExcluding":"4.14.303"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.18","versionEndExcluding":"4.19.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.18","versionEndExcluding":"5.4.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.18","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.18","versionEndExcluding":"5.15.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.18","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.18","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.18","versionEndExcluding":"6.2"}]}]}],"x_g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