206 lines
10 KiB
JSON
206 lines
10 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-72486",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-08-09T03:40:39.936Z",
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"datePublished": "2026-08-15T05:57:22.821Z",
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"dateUpdated": "2026-08-17T05:15:36.888Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-17T05:15:36.888Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: mtk-adsp: fix UAF during device teardown\n\nWhen the SOF audio driver fails to initialize (e.g. firmware boot\ntimeout), its devres unwind frees the snd_sof_dev object that the\nmailbox client (mtk-adsp-ipc) reaches via chan->cl->rx_callback.\nThe mtk-adsp-mailbox shutdown clears the mailbox command registers\nbut leaves the IRQ line unmasked, so a late interrupt can still\nqueue a threaded handler after mbox_free_channel() had cleared\nchan->cl, and mbox_chan_received_data() would then trigger UAF:\n\n BUG: KASAN: slab-use-after-free in sof_ipc3_validate_fw_version\n sof_ipc3_validate_fw_version\n sof_ipc3_do_rx_work\n sof_ipc3_rx_msg\n mt8196_dsp_handle_request\n mtk_adsp_ipc_recv\n mbox_chan_received_data\n mtk_adsp_mbox_isr\n irq_thread_fn\n Freed by task ...:\n kfree\n devres_release_all\n really_probe\n ... (sof-audio-of-mt8196 probe failure)\n\nThe crash was observed roughly three seconds after the failed probe.\n\ndisable_irq() in shutdown and enable_irq() in startup. disable_irq()\nalso waits for any in-flight interrupts, so by the time\nmbox_free_channel() proceeds to clear chan->cl no rx_callback can run.\n\nIn addition, request the IRQ with IRQF_NO_AUTOEN so it stays masked\nbetween probe and the first client bind — otherwise an early interrupt\ncan crash on chan->cl == NULL in mbox_chan_received_data()."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/mailbox/mtk-adsp-mailbox.c"
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],
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"versions": [
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{
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"version": "af2dfa96c52d042df5deb29fb6e32d3ff4d76a61",
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"lessThan": "b6337a08a63eef8efcffe3c01d479badda6bbbdb",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "af2dfa96c52d042df5deb29fb6e32d3ff4d76a61",
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"lessThan": "e519c1d8c5efb5cd8d4c5bb3fe39b1bbb812bdb9",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "af2dfa96c52d042df5deb29fb6e32d3ff4d76a61",
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"lessThan": "fc6c3deb1d4c0adebf7dee0b8af4082af3f17690",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "af2dfa96c52d042df5deb29fb6e32d3ff4d76a61",
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"lessThan": "7d881615fb6373f71fc628b3f00186aeca87a3d5",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "af2dfa96c52d042df5deb29fb6e32d3ff4d76a61",
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"lessThan": "25d6ea6c76e1b1b7c57337b2f8f1b6fc8d5c52bc",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "af2dfa96c52d042df5deb29fb6e32d3ff4d76a61",
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"lessThan": "b57d1a40bc43258372fa1f4d39305e093947a262",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/mailbox/mtk-adsp-mailbox.c"
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],
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"versions": [
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{
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"version": "5.18",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.18",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.178",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.145",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.97",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.40",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.1.5",
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"lessThanOrEqual": "7.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "6.1.178"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "6.6.145"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "6.12.97"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "6.18.40"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "7.1.5"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.18",
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"versionEndExcluding": "7.2"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/b6337a08a63eef8efcffe3c01d479badda6bbbdb"
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},
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{
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"url": "https://git.kernel.org/stable/c/e519c1d8c5efb5cd8d4c5bb3fe39b1bbb812bdb9"
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},
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{
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"url": "https://git.kernel.org/stable/c/fc6c3deb1d4c0adebf7dee0b8af4082af3f17690"
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},
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{
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"url": "https://git.kernel.org/stable/c/7d881615fb6373f71fc628b3f00186aeca87a3d5"
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},
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{
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"url": "https://git.kernel.org/stable/c/25d6ea6c76e1b1b7c57337b2f8f1b6fc8d5c52bc"
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},
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{
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"url": "https://git.kernel.org/stable/c/b57d1a40bc43258372fa1f4d39305e093947a262"
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}
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],
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"title": "mailbox: mtk-adsp: fix UAF during device teardown",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |