{"id":"CVE-2026-98016","state":"PUBLISHED","title":"net/mlx5e: Fix use-after-free race in sample_restore_put()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix use-after-free race in sample_restore_put()\n\nConcurrent teardown of TC sample rules sharing the same restore\ncontext may re-read restore->count after dropping restore_lock.\nAt that point another thread may already have completed cleanup and\nfreed the restore object.\n\nUse the result of the refcount decrement while holding restore_lock to\ndetermine whether cleanup is needed.","publishedAt":"2026-09-25T10:23:38.316Z","updatedAt":"2026-10-19T09:12:21.604Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"cdf920e44cbbee1900c66f002fb50afee20977d4","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"308e1cbb0d9712081f90860fe839ccb47bc196ee","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"8267e46d14e847e80e0aebe366d348e8a484a619","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79a","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"72324da8eeca269db9196c2a555abf72eb0385c5","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"1daecd76ab9e5f055fe3970462410ad1d40bd177","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"af3aef0245abbab5e9f6302e7a7d6407187afb71","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","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":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c"]}],"references":["https://git.kernel.org/stable/c/cdf920e44cbbee1900c66f002fb50afee20977d4","https://git.kernel.org/stable/c/308e1cbb0d9712081f90860fe839ccb47bc196ee","https://git.kernel.org/stable/c/8267e46d14e847e80e0aebe366d348e8a484a619","https://git.kernel.org/stable/c/3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79a","https://git.kernel.org/stable/c/72324da8eeca269db9196c2a555abf72eb0385c5","https://git.kernel.org/stable/c/1daecd76ab9e5f055fe3970462410ad1d40bd177","https://git.kernel.org/stable/c/af3aef0245abbab5e9f6302e7a7d6407187afb71"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98016.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98016","state":"PUBLISHED","datePublished":"2026-09-25T10:23:38.316Z","dateUpdated":"2026-10-19T09:12:21.604Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:19:56.069Z"},"containers":{"cna":{"title":"net/mlx5e: Fix use-after-free race in sample_restore_put()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix use-after-free race in sample_restore_put()\n\nConcurrent teardown of TC sample rules sharing the same restore\ncontext may re-read restore->count after dropping restore_lock.\nAt that point another thread may already have completed cleanup and\nfreed the restore object.\n\nUse the result of the refcount decrement while holding restore_lock to\ndetermine whether cleanup is needed."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"cdf920e44cbbee1900c66f002fb50afee20977d4","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"308e1cbb0d9712081f90860fe839ccb47bc196ee","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"8267e46d14e847e80e0aebe366d348e8a484a619","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79a","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"72324da8eeca269db9196c2a555abf72eb0385c5","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"1daecd76ab9e5f055fe3970462410ad1d40bd177","versionType":"git"},{"version":"36a3196256bf3310e5e7142b0e61787f7a201abd","status":"affected","lessThan":"af3aef0245abbab5e9f6302e7a7d6407187afb71","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","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":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/cdf920e44cbbee1900c66f002fb50afee20977d4"},{"url":"https://git.kernel.org/stable/c/308e1cbb0d9712081f90860fe839ccb47bc196ee"},{"url":"https://git.kernel.org/stable/c/8267e46d14e847e80e0aebe366d348e8a484a619"},{"url":"https://git.kernel.org/stable/c/3efd1a1938cbb33c53b0d75e55b6c0fe2ebad79a"},{"url":"https://git.kernel.org/stable/c/72324da8eeca269db9196c2a555abf72eb0385c5"},{"url":"https://git.kernel.org/stable/c/1daecd76ab9e5f055fe3970462410ad1d40bd177"},{"url":"https://git.kernel.org/stable/c/af3aef0245abbab5e9f6302e7a7d6407187afb71"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:12:21.604Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"7.2.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}