{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50288","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-09-15T13:58:00.977Z","datePublished":"2025-09-15T14:21:24.427Z","dateUpdated":"2026-05-11T19:16:25.955Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:16:25.955Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nqlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure\n\nadapter->dcb would get silently freed inside qlcnic_dcb_enable() in\ncase qlcnic_dcb_attach() would return an error, which always happens\nunder OOM conditions. This would lead to use-after-free because both\nof the existing callers invoke qlcnic_dcb_get_info() on the obtained\npointer, which is potentially freed at that point.\n\nPropagate errors from qlcnic_dcb_enable(), and instead free the dcb\npointer at callsite using qlcnic_dcb_free(). This also removes the now\nunused qlcnic_clear_dcb_ops() helper, which was a simple wrapper around\nkfree() also causing memory leaks for partially initialized dcb.\n\nFound by Linux Verification Center (linuxtesting.org) with the SVACE\nstatic analysis tool."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c","drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h","drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c"],"versions":[{"version":"3c44bba1d270cb1620b4fe76786d0968118cb86b","lessThan":"36999236f0b12d5de21a6f40e93b570727b9ceb2","status":"affected","versionType":"git"},{"version":"3c44bba1d270cb1620b4fe76786d0968118cb86b","lessThan":"d12a7510293d3370b234b0b7c5eda33e58786768","status":"affected","versionType":"git"},{"version":"3c44bba1d270cb1620b4fe76786d0968118cb86b","lessThan":"8f97eeb02a553cdc78c83a0596448a370e1518c4","status":"affected","versionType":"git"},{"version":"3c44bba1d270cb1620b4fe76786d0968118cb86b","lessThan":"513787ff9a331b461115e8a145a983d650a84fcb","status":"affected","versionType":"git"},{"version":"3c44bba1d270cb1620b4fe76786d0968118cb86b","lessThan":"95df720e64a6409d8152827a776c43f615e3321a","status":"affected","versionType":"git"},{"version":"3c44bba1d270cb1620b4fe76786d0968118cb86b","lessThan":"8df1dc04ce0e4c03b51a756749c250a9cb17d707","status":"affected","versionType":"git"},{"version":"3c44bba1d270cb1620b4fe76786d0968118cb86b","lessThan":"a2a694e6edbdb3efb34e1613a31fdcf6cf444a55","status":"affected","versionType":"git"},{"version":"3c44bba1d270cb1620b4fe76786d0968118cb86b","lessThan":"13a7c8964afcd8ca43c0b6001ebb0127baa95362","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c","drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h","drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c"],"versions":[{"version":"3.14","status":"affected"},{"version":"0","lessThan":"3.14","status":"unaffected","versionType":"semver"},{"version":"4.14.303","lessThanOrEqual":"4.14.*","status":"unaffected","versionType":"semver"},{"version":"4.19.270","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.229","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.163","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.87","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.0.19","lessThanOrEqual":"6.0.*","status":"unaffected","versionType":"semver"},{"version":"6.1.5","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.2","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":"3.14","versionEndExcluding":"4.14.303"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"4.19.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"5.4.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"5.15.87"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.0.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/36999236f0b12d5de21a6f40e93b570727b9ceb2"},{"url":"https://git.kernel.org/stable/c/d12a7510293d3370b234b0b7c5eda33e58786768"},{"url":"https://git.kernel.org/stable/c/8f97eeb02a553cdc78c83a0596448a370e1518c4"},{"url":"https://git.kernel.org/stable/c/513787ff9a331b461115e8a145a983d650a84fcb"},{"url":"https://git.kernel.org/stable/c/95df720e64a6409d8152827a776c43f615e3321a"},{"url":"https://git.kernel.org/stable/c/8df1dc04ce0e4c03b51a756749c250a9cb17d707"},{"url":"https://git.kernel.org/stable/c/a2a694e6edbdb3efb34e1613a31fdcf6cf444a55"},{"url":"https://git.kernel.org/stable/c/13a7c8964afcd8ca43c0b6001ebb0127baa95362"}],"title":"qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure","x_generator":{"engine":"bippy-1.2.0"}}}}