{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-56593", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-27T14:03:06.003Z", "datePublished": "2024-12-27T14:51:00.466Z", "dateUpdated": "2026-05-11T20:55:27.627Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T20:55:27.627Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: Fix oops due to NULL pointer dereference in brcmf_sdiod_sglist_rw()\n\nThis patch fixes a NULL pointer dereference bug in brcmfmac that occurs\nwhen a high 'sd_sgentry_align' value applies (e.g. 512) and a lot of queued SKBs\nare sent from the pkt queue.\n\nThe problem is the number of entries in the pre-allocated sgtable, it is\nnents = max(rxglom_size, txglom_size) + max(rxglom_size, txglom_size) >> 4 + 1.\nGiven the default [rt]xglom_size=32 it's actually 35 which is too small.\nWorst case, the pkt queue can end up with 64 SKBs. This occurs when a new SKB\nis added for each original SKB if tailroom isn't enough to hold tail_pad.\nAt least one sg entry is needed for each SKB. So, eventually the \"skb_queue_walk loop\"\nin brcmf_sdiod_sglist_rw may run out of sg entries. This makes sg_next return\nNULL and this causes the oops.\n\nThe patch sets nents to max(rxglom_size, txglom_size) * 2 to be able handle\nthe worst-case.\nBtw. this requires only 64-35=29 * 16 (or 20 if CONFIG_NEED_SG_DMA_LENGTH) = 464\nadditional bytes of memory." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c" ], "versions": [ { "version": "af1fa210f4fc6e304b859b386a3c8a266b1110ab", "lessThan": "342f87d263462c2670b77ea9a32074cab2ac6fa1", "status": "affected", "versionType": "git" }, { "version": "af1fa210f4fc6e304b859b386a3c8a266b1110ab", "lessThan": "7522d7d745d13fbeff3350fe6aa56c8dae263571", "status": "affected", "versionType": "git" }, { "version": "af1fa210f4fc6e304b859b386a3c8a266b1110ab", "lessThan": "dfb3f9d3f602602de208da7bdcc0f6d5ee74af68", "status": "affected", "versionType": "git" }, { "version": "af1fa210f4fc6e304b859b386a3c8a266b1110ab", "lessThan": "67a25ea28f8ec1da8894f2f115d01d3becf67dc7", "status": "affected", "versionType": "git" }, { "version": "af1fa210f4fc6e304b859b386a3c8a266b1110ab", "lessThan": "07c020c6d14d29e5a3ea4e4576b8ecf956a80834", "status": "affected", "versionType": "git" }, { "version": "af1fa210f4fc6e304b859b386a3c8a266b1110ab", "lessThan": "34941321b516bd7c6103bd01287d71a1804d19d3", "status": "affected", "versionType": "git" }, { "version": "af1fa210f4fc6e304b859b386a3c8a266b1110ab", "lessThan": "857282b819cbaa0675aaab1e7542e2c0579f52d7", "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/broadcom/brcm80211/brcmfmac/bcmsdh.c" ], "versions": [ { "version": "3.15", "status": "affected" }, { "version": "0", "lessThan": "3.15", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.287", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.231", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.174", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.120", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.66", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.5", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13", "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": "3.15", "versionEndExcluding": "5.4.287" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "5.10.231" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "5.15.174" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.1.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.6.66" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.12.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.15", "versionEndExcluding": "6.13" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/342f87d263462c2670b77ea9a32074cab2ac6fa1" }, { "url": "https://git.kernel.org/stable/c/7522d7d745d13fbeff3350fe6aa56c8dae263571" }, { "url": "https://git.kernel.org/stable/c/dfb3f9d3f602602de208da7bdcc0f6d5ee74af68" }, { "url": "https://git.kernel.org/stable/c/67a25ea28f8ec1da8894f2f115d01d3becf67dc7" }, { "url": "https://git.kernel.org/stable/c/07c020c6d14d29e5a3ea4e4576b8ecf956a80834" }, { "url": "https://git.kernel.org/stable/c/34941321b516bd7c6103bd01287d71a1804d19d3" }, { "url": "https://git.kernel.org/stable/c/857282b819cbaa0675aaab1e7542e2c0579f52d7" } ], "title": "wifi: brcmfmac: Fix oops due to NULL pointer dereference in brcmf_sdiod_sglist_rw()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-56593", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T20:01:39.392025Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T20:07:14.320Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T20:50:17.021Z" } } ] } }