{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31552","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-03-09T15:48:24.115Z","datePublished":"2026-04-24T14:33:19.065Z","dateUpdated":"2026-05-11T22:10:59.026Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:10:59.026Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wlcore: Return -ENOMEM instead of -EAGAIN if there is not enough headroom\n\nSince upstream commit e75665dd0968 (\"wifi: wlcore: ensure skb headroom\nbefore skb_push\"), wl1271_tx_allocate() and with it\nwl1271_prepare_tx_frame() returns -EAGAIN if pskb_expand_head() fails.\nHowever, in wlcore_tx_work_locked(), a return value of -EAGAIN from\nwl1271_prepare_tx_frame() is interpreted as the aggregation buffer being\nfull. This causes the code to flush the buffer, put the skb back at the\nhead of the queue, and immediately retry the same skb in a tight while\nloop.\n\nBecause wlcore_tx_work_locked() holds wl->mutex, and the retry happens\nimmediately with GFP_ATOMIC, this will result in an infinite loop and a\nCPU soft lockup. Return -ENOMEM instead so the packet is dropped and\nthe loop terminates.\n\nThe problem was found by an experimental code review agent based on\ngemini-3.1-pro while reviewing backports into v6.18.y."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/ti/wlcore/tx.c"],"versions":[{"version":"88295a55fefe5414e64293638b6f7549646e58ed","lessThan":"980f793645540ca7a6318165cc12f49d5febeb99","status":"affected","versionType":"git"},{"version":"cd89a4656c03f8db0c57350aaec69cd3cfaa3522","lessThan":"12f9eef39e49716c763714bfda835a733d5f6dea","status":"affected","versionType":"git"},{"version":"745a0810dbc96a0471e5f5e627ba1e978c3116d4","lessThan":"ceb46b40b021d21911ff8608ce4ed33c1264ad2f","status":"affected","versionType":"git"},{"version":"b167312390fdd461c81ead516f2b0b44e83a9edb","lessThan":"a6dc74209462c4fe5a88718d2f3a5286886081c8","status":"affected","versionType":"git"},{"version":"71de0b6e04bbee5575caf9a1e4d424e7dcc50018","lessThan":"cfa64e2b3717be1da7c4c1aff7268a009e8c1610","status":"affected","versionType":"git"},{"version":"689a7980e4788e13e766763d53569fb78dea2513","lessThan":"46c670ff1ff466e5eccb3940f726586473dc053c","status":"affected","versionType":"git"},{"version":"e75665dd096819b1184087ba5718bd93beafff51","lessThan":"f2c06d718a7b85cbc59ceaa2ff3f46b178ac709c","status":"affected","versionType":"git"},{"version":"e75665dd096819b1184087ba5718bd93beafff51","lessThan":"deb353d9bb009638b7762cae2d0b6e8fdbb41a69","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/wireless/ti/wlcore/tx.c"],"versions":[{"version":"6.19","status":"affected"},{"version":"0","lessThan":"6.19","status":"unaffected","versionType":"semver"},{"version":"5.10.253","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.203","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.167","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.130","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.78","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.20","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.10","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","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":"5.10.250","versionEndExcluding":"5.10.253"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.200","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.163","versionEndExcluding":"6.1.167"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.124","versionEndExcluding":"6.6.130"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.70","versionEndExcluding":"6.12.78"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18.10","versionEndExcluding":"6.18.20"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"6.19.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/980f793645540ca7a6318165cc12f49d5febeb99"},{"url":"https://git.kernel.org/stable/c/12f9eef39e49716c763714bfda835a733d5f6dea"},{"url":"https://git.kernel.org/stable/c/ceb46b40b021d21911ff8608ce4ed33c1264ad2f"},{"url":"https://git.kernel.org/stable/c/a6dc74209462c4fe5a88718d2f3a5286886081c8"},{"url":"https://git.kernel.org/stable/c/cfa64e2b3717be1da7c4c1aff7268a009e8c1610"},{"url":"https://git.kernel.org/stable/c/46c670ff1ff466e5eccb3940f726586473dc053c"},{"url":"https://git.kernel.org/stable/c/f2c06d718a7b85cbc59ceaa2ff3f46b178ac709c"},{"url":"https://git.kernel.org/stable/c/deb353d9bb009638b7762cae2d0b6e8fdbb41a69"}],"title":"wifi: wlcore: Return -ENOMEM instead of -EAGAIN if there is not enough headroom","x_generator":{"engine":"bippy-1.2.0"}}}}