{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-53239", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-11-19T17:17:25.026Z", "datePublished": "2024-12-27T13:50:24.896Z", "dateUpdated": "2026-08-05T11:44:48.839Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:44:48.839Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: 6fire: Release resources at card release\n\nThe current 6fire code tries to release the resources right after the\ncall of usb6fire_chip_abort(). But at this moment, the card object\nmight be still in use (as we're calling snd_card_free_when_closed()).\n\nFor avoid potential UAFs, move the release of resources to the card's\nprivate_free instead of the manual call of usb6fire_chip_destroy() at\nthe USB disconnect callback." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - Exploitation is driven entirely through local syscalls on ALSA character devices (`/dev/snd/pcmC*D*`, `/dev/snd/midiC*D*`) — the attacker holds an fd open across the card teardown, sprays the kernel heap to reclaim the freed `pcm_runtime`/`midi_runtime`, and then triggers the dereference with `close()`. This matches the AV:L scoring used for the sibling ALSA-USB disconnect CVEs in the same patch series (CVE-2024-56531).\nAC:L - There is no race to win: the free happens at teardown and the use happens at a moment the attacker chooses (`close()`), so the reclaim window is unbounded and the attacker can spray the corresponding kmalloc caches at leisure. The object sizes are stable and deterministic, making reliable reclaim straightforward.\nPR:L - The attacker only needs an ordinary unprivileged local account with access to the sound devices — granted by default to the active seat via systemd-logind uaccess ACLs or `audio` group membership. No capability, root, or namespace privilege is required.\nUI:N - The attacker performs every step themselves — opening the PCM/MIDI device, causing the card teardown, spraying the heap, and closing the fd. No action by a separate victim user is needed for the use-after-free to fire.\nS:U - The corruption is confined to kernel heap memory managed by the same kernel security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The freed `pcm_runtime`/`midi_runtime`/`comm_runtime`/`control_runtime` objects are reclaimable by attacker-controlled or victim-owned allocations, and the driver then reads chained pointers (`rt->chip->control`, `rt->chip->dev`, `sub->instance->runtime`) out of them, giving an attacker-steerable read primitive into arbitrary kernel memory.\nI:H - `usb6fire_pcm_close()` writes into the freed object (`sub->instance`, `sub->active`, `rt->stream_state`, `rt->rate`) and `usb6fire_pcm_stream_stop()` performs an indirect call via `ctrl_rt->update_streaming()` — a function pointer read from reclaimed memory; the rawmidi path additionally calls `usb_submit_urb()` on a freed embedded `struct urb`, yielding a controlled `urb->complete` callback and full control-flow hijack potential.\nA:H - Even without controlled reclaim, dereferencing and locking the freed structures (`mutex_lock(&rt->stream_mutex)`, `spin_lock_irqsave(&rt->out_lock)`) on poisoned or reused slab memory reliably produces an oops, lock corruption, or kernel panic, taking the system down." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "sound/usb/6fire/chip.c" ], "versions": [ { "version": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9", "lessThan": "74357d0b5cd3ef544752bc9f21cbeee4902fae6c", "status": "affected", "versionType": "git" }, { "version": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9", "lessThan": "273eec23467dfbfbd0e4c10302579ba441fb1e13", "status": "affected", "versionType": "git" }, { "version": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9", "lessThan": "f2d06d4e129e2508e356136f99bb20a332ff1a00", "status": "affected", "versionType": "git" }, { "version": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9", "lessThan": "b889a7d68d7e76b8795b754a75c91a2d561d5e8c", "status": "affected", "versionType": "git" }, { "version": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9", "lessThan": "ea8cc56db659cf0ae57073e32a4735ead7bd7ee3", "status": "affected", "versionType": "git" }, { "version": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9", "lessThan": "b754e831a94f82f2593af806741392903f359168", "status": "affected", "versionType": "git" }, { "version": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9", "lessThan": "0df7f4b5cc10f5adf98be0845372e9eef7bb5b09", "status": "affected", "versionType": "git" }, { "version": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9", "lessThan": "57860a80f03f9dc69a34a5c37b0941ad032a0a8c", "status": "affected", "versionType": "git" }, { "version": "c6d43ba816d1cf1d125bfbfc938f2a28a87facf9", "lessThan": "a0810c3d6dd2d29a9b92604d682eacd2902ce947", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "sound/usb/6fire/chip.c" ], "versions": [ { "version": "2.6.39", "status": "affected" }, { "version": "0", "lessThan": "2.6.39", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.325", "lessThanOrEqual": "4.19.*", "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": "6.6.64", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.11.11", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.2", "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": "2.6.39", "versionEndExcluding": "4.19.325" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "5.4.287" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "5.10.231" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "5.15.174" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.1.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.6.64" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.11.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.12.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.39", "versionEndExcluding": "6.13" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/74357d0b5cd3ef544752bc9f21cbeee4902fae6c" }, { "url": "https://git.kernel.org/stable/c/273eec23467dfbfbd0e4c10302579ba441fb1e13" }, { "url": "https://git.kernel.org/stable/c/f2d06d4e129e2508e356136f99bb20a332ff1a00" }, { "url": "https://git.kernel.org/stable/c/b889a7d68d7e76b8795b754a75c91a2d561d5e8c" }, { "url": "https://git.kernel.org/stable/c/ea8cc56db659cf0ae57073e32a4735ead7bd7ee3" }, { "url": "https://git.kernel.org/stable/c/b754e831a94f82f2593af806741392903f359168" }, { "url": "https://git.kernel.org/stable/c/0df7f4b5cc10f5adf98be0845372e9eef7bb5b09" }, { "url": "https://git.kernel.org/stable/c/57860a80f03f9dc69a34a5c37b0941ad032a0a8c" }, { "url": "https://git.kernel.org/stable/c/a0810c3d6dd2d29a9b92604d682eacd2902ce947" } ], "title": "ALSA: 6fire: Release resources at card release", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2024-53239", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-02-10T17:12:52.535037Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-10T17:21:08.762Z" } }, { "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": "2025-11-03T20:48:08.091Z" } } ] } }