{"id":"CVE-2026-72448","state":"PUBLISHED","title":"octeontx2-pf: Fix leak of SQ timestamp buffer on teardown","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: Fix leak of SQ timestamp buffer on teardown\n\nThe send-queue timestamp ring is allocated with qmem_alloc() when\ntimestamping is used, but otx2_free_sq_res() never freed sq->timestamps,\nleaking that memory across ifdown and device removal.  Add the missing\nqmem_free() alongside the other SQ companion buffers.","publishedAt":"2026-08-15T05:56:57.701Z","updatedAt":"2026-08-17T05:14:50.660Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"c642a530aaaeb9a3e356cedfe77955e7f983380e","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"e68ada66afcae0bc2a7c06b43c5a9a081d29e7b4","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"d6c0b0c802d3c49b86cad665a7f3790dc55a0394","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"19d2d36e193c3fb515c052a56bfc83d8ac7b6764","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"e8e9dff204e8d8553495893e1a44d2b5021648de","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"3d45d40b872aec0073d4cf08956a6c9b87c5e396","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"452ec5058ea4ed63adae8d6beeac9ee687fe8061","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"a056db30de92945ff8ee6033096678bfbae878e3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","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/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"]}],"references":["https://git.kernel.org/stable/c/c642a530aaaeb9a3e356cedfe77955e7f983380e","https://git.kernel.org/stable/c/e68ada66afcae0bc2a7c06b43c5a9a081d29e7b4","https://git.kernel.org/stable/c/d6c0b0c802d3c49b86cad665a7f3790dc55a0394","https://git.kernel.org/stable/c/19d2d36e193c3fb515c052a56bfc83d8ac7b6764","https://git.kernel.org/stable/c/e8e9dff204e8d8553495893e1a44d2b5021648de","https://git.kernel.org/stable/c/3d45d40b872aec0073d4cf08956a6c9b87c5e396","https://git.kernel.org/stable/c/452ec5058ea4ed63adae8d6beeac9ee687fe8061","https://git.kernel.org/stable/c/a056db30de92945ff8ee6033096678bfbae878e3"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72448.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72448","state":"PUBLISHED","datePublished":"2026-08-15T05:56:57.701Z","dateUpdated":"2026-08-17T05:14:50.660Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.931Z"},"containers":{"cna":{"title":"octeontx2-pf: Fix leak of SQ timestamp buffer on teardown","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: Fix leak of SQ timestamp buffer on teardown\n\nThe send-queue timestamp ring is allocated with qmem_alloc() when\ntimestamping is used, but otx2_free_sq_res() never freed sq->timestamps,\nleaking that memory across ifdown and device removal.  Add the missing\nqmem_free() alongside the other SQ companion buffers."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"c642a530aaaeb9a3e356cedfe77955e7f983380e","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"e68ada66afcae0bc2a7c06b43c5a9a081d29e7b4","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"d6c0b0c802d3c49b86cad665a7f3790dc55a0394","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"19d2d36e193c3fb515c052a56bfc83d8ac7b6764","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"e8e9dff204e8d8553495893e1a44d2b5021648de","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"3d45d40b872aec0073d4cf08956a6c9b87c5e396","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"452ec5058ea4ed63adae8d6beeac9ee687fe8061","versionType":"git"},{"version":"c9c12d339d93366732112d7ff472958834bfc3c5","status":"affected","lessThan":"a056db30de92945ff8ee6033096678bfbae878e3","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","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/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c642a530aaaeb9a3e356cedfe77955e7f983380e"},{"url":"https://git.kernel.org/stable/c/e68ada66afcae0bc2a7c06b43c5a9a081d29e7b4"},{"url":"https://git.kernel.org/stable/c/d6c0b0c802d3c49b86cad665a7f3790dc55a0394"},{"url":"https://git.kernel.org/stable/c/19d2d36e193c3fb515c052a56bfc83d8ac7b6764"},{"url":"https://git.kernel.org/stable/c/e8e9dff204e8d8553495893e1a44d2b5021648de"},{"url":"https://git.kernel.org/stable/c/3d45d40b872aec0073d4cf08956a6c9b87c5e396"},{"url":"https://git.kernel.org/stable/c/452ec5058ea4ed63adae8d6beeac9ee687fe8061"},{"url":"https://git.kernel.org/stable/c/a056db30de92945ff8ee6033096678bfbae878e3"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:14:50.660Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}