{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-48851", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-16T11:38:08.913Z", "datePublished": "2024-07-16T12:25:18.488Z", "dateUpdated": "2026-08-05T08:52:38.698Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T08:52:38.698Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: gdm724x: fix use after free in gdm_lte_rx()\n\nThe netif_rx_ni() function frees the skb so we can't dereference it to\nsave the skb->len." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "scenarios": [ { "lang": "en", "value": "AV:N - gdm_lte_rx() is the RX completion path of the GDM724x LTE WWAN netdev; a remote peer that can deliver packets over the cellular/IP path causes the modem to submit LTE_RX_SDU bulk data, which flows USB RX → do_rx() → gdm_lte_receive_pkt() → gdm_lte_netif_rx() → gdm_lte_rx() on every received SDU—ordinary network traffic, not USB-descriptor framing.\nAC:L - Every successful receive that returns NET_RX_SUCCESS from netif_rx_ni() takes the else branch and dereferences skb->len after the skb has been consumed/freed by backlog softirq processing; the attacker only needs to deliver packets and needs no race or uncontrollable victim state.\nPR:N - Inbound LTE SDUs are processed with no host authentication, credentials, or capabilities; a remote network peer needs no OS account on the target.\nUI:N - Once the modem is attached and the lte*pdn* interfaces are up (typical always-on LTE/IoT deployment), packet delivery alone triggers the path with no mount, file-open, or other victim action.\nS:U - The use-after-free corrupts/uses host kernel skb/stats state within the same OS security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - This is a use-after-free of the skb object after netif_rx_ni(); per scoring guidance a UAF enables heap reuse and arbitrary kernel memory disclosure (the freed skb->len read also feeds visible rx_bytes stats).\nI:H - Use-after-free of a slab skb is memory corruption that, under the higher-severity rule, is treated as enabling heap spray and write/control-flow hijack primitives in kernel context.\nA:H - Use-after-free of a consumed skb can oops/panic the kernel (and UAFs are scored A:H even when not fully exploited); a remote peer can retrigger it per received packet." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/staging/gdm724x/gdm_lte.c" ], "versions": [ { "version": "61e121047645122c47714fcda684d0ee67f444af", "lessThan": "6dc7b87c62423bfa68139fe95e85028aab584c9a", "status": "affected", "versionType": "git" }, { "version": "61e121047645122c47714fcda684d0ee67f444af", "lessThan": "83a9c886c2b5a0d28c0b37e1736b47f38d61332a", "status": "affected", "versionType": "git" }, { "version": "61e121047645122c47714fcda684d0ee67f444af", "lessThan": "48ecdf3e29a6e514e8196691589c7dfc6c4ac169", "status": "affected", "versionType": "git" }, { "version": "61e121047645122c47714fcda684d0ee67f444af", "lessThan": "403e3afe241b62401de1f8629c9c6b9b3d69dbff", "status": "affected", "versionType": "git" }, { "version": "61e121047645122c47714fcda684d0ee67f444af", "lessThan": "6d9700b445098dbbce0caff4b8cfca214cf1e757", "status": "affected", "versionType": "git" }, { "version": "61e121047645122c47714fcda684d0ee67f444af", "lessThan": "1fb9dd3787495b4deb0efe66c58306b65691a48f", "status": "affected", "versionType": "git" }, { "version": "61e121047645122c47714fcda684d0ee67f444af", "lessThan": "d39dc79513e99147b4c158a8a9e46743e23944f5", "status": "affected", "versionType": "git" }, { "version": "61e121047645122c47714fcda684d0ee67f444af", "lessThan": "fc7f750dc9d102c1ed7bbe4591f991e770c99033", "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/staging/gdm724x/gdm_lte.c" ], "versions": [ { "version": "3.12", "status": "affected" }, { "version": "0", "lessThan": "3.12", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.307", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.272", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.235", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.185", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.106", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.29", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16.15", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17", "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": "3.12", "versionEndExcluding": "4.9.307" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "4.14.272" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "4.19.235" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.4.185" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.10.106" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.15.29" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.16.15" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.12", "versionEndExcluding": "5.17" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/6dc7b87c62423bfa68139fe95e85028aab584c9a" }, { "url": "https://git.kernel.org/stable/c/83a9c886c2b5a0d28c0b37e1736b47f38d61332a" }, { "url": "https://git.kernel.org/stable/c/48ecdf3e29a6e514e8196691589c7dfc6c4ac169" }, { "url": "https://git.kernel.org/stable/c/403e3afe241b62401de1f8629c9c6b9b3d69dbff" }, { "url": "https://git.kernel.org/stable/c/6d9700b445098dbbce0caff4b8cfca214cf1e757" }, { "url": "https://git.kernel.org/stable/c/1fb9dd3787495b4deb0efe66c58306b65691a48f" }, { "url": "https://git.kernel.org/stable/c/d39dc79513e99147b4c158a8a9e46743e23944f5" }, { "url": "https://git.kernel.org/stable/c/fc7f750dc9d102c1ed7bbe4591f991e770c99033" } ], "title": "staging: gdm724x: fix use after free in gdm_lte_rx()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.775Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/6dc7b87c62423bfa68139fe95e85028aab584c9a", "tags": [ "x_transferred" ] }, { "url": 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Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-09-10T16:26:05.468000Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:34:08.533Z" } } ] } }