{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63822", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.014Z", "datePublished": "2026-07-19T12:02:19.286Z", "dateUpdated": "2026-07-19T12:02:19.286Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T12:02:19.286Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath11k: fix warning when unbinding\n\nIf there is an error during some initialization related to firmware,\nthe buffers dp->tx_ring[i].tx_status are released.\nHowever this is released again when the device is unbinded (ath11k_pci),\nand we get:\nWARNING: CPU: 0 PID: 6231 at mm/slub.c:4368 free_large_kmalloc+0x57/0x90\nCall Trace:\nfree_large_kmalloc\nath11k_dp_free\nath11k_core_deinit\nath11k_pci_remove\n...\n\nThe issue is always reproducible from a VM because the MSI addressing\ninitialization is failing.\n\nIn order to fix the issue, just set the buffers to NULL after releasing in\norder to avoid the double free."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/ath/ath11k/dp.c"], "versions": [{"version": "d5c65159f2895379e11ca13f62feabe93278985d", "lessThan": "e569a5cb401a267168621aa9a1e7f07fcc9612c3", "status": "affected", "versionType": "git"}, {"version": "d5c65159f2895379e11ca13f62feabe93278985d", "lessThan": "0aa097a370277deab5337030b9e2d395742f469c", "status": "affected", "versionType": "git"}, {"version": "d5c65159f2895379e11ca13f62feabe93278985d", "lessThan": "0a946abb82f29abe9a15173b707a449cb039b43e", "status": "affected", "versionType": "git"}, {"version": "d5c65159f2895379e11ca13f62feabe93278985d", "lessThan": "318703b6f71d1a29ee0ac46c32a38f7734d4cfb2", "status": "affected", "versionType": "git"}, {"version": "d5c65159f2895379e11ca13f62feabe93278985d", "lessThan": "7b2e62b9080bf4a5f4e70cfe47156df8d93a4f13", "status": "affected", "versionType": "git"}, {"version": "d5c65159f2895379e11ca13f62feabe93278985d", "lessThan": "40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0a", "status": "affected", "versionType": "git"}, {"version": "d5c65159f2895379e11ca13f62feabe93278985d", "lessThan": "051f954b94479d72222c9fbc82a3eef4777bca01", "status": "affected", "versionType": "git"}, {"version": "d5c65159f2895379e11ca13f62feabe93278985d", "lessThan": "8b7a26b6681922a38cd5a7829ace61f8e54df9b7", "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/ath/ath11k/dp.c"], "versions": [{"version": "5.6", "status": "affected"}, {"version": "0", "lessThan": "5.6", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.260", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.211", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.177", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.144", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.95", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.38", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.3", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "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": "5.6", "versionEndExcluding": "5.10.260"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "5.15.211"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.1.177"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.6.144"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.12.95"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.18.38"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "7.1.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e569a5cb401a267168621aa9a1e7f07fcc9612c3"}, {"url": "https://git.kernel.org/stable/c/0aa097a370277deab5337030b9e2d395742f469c"}, {"url": "https://git.kernel.org/stable/c/0a946abb82f29abe9a15173b707a449cb039b43e"}, {"url": "https://git.kernel.org/stable/c/318703b6f71d1a29ee0ac46c32a38f7734d4cfb2"}, {"url": "https://git.kernel.org/stable/c/7b2e62b9080bf4a5f4e70cfe47156df8d93a4f13"}, {"url": "https://git.kernel.org/stable/c/40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0a"}, {"url": "https://git.kernel.org/stable/c/051f954b94479d72222c9fbc82a3eef4777bca01"}, {"url": "https://git.kernel.org/stable/c/8b7a26b6681922a38cd5a7829ace61f8e54df9b7"}], "title": "wifi: ath11k: fix warning when unbinding", "x_generator": {"engine": "bippy-1.2.0"}}}}

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