{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-63906","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T07:54:57.020Z","datePublished":"2026-07-19T14:55:12.982Z","dateUpdated":"2026-08-05T12:37:01.876Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T12:37:01.876Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: musb: omap2430: Fix use-after-free in omap2430_probe()\n\nIn omap2430_probe(), of_node_put(np) is called prematurely before the\nlast access to np, leading to a use-after-free if the node's reference\ncount drops to zero. Move the of_node_put() calls after the last use of\nnp in both the success and error paths."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.4,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The UAF is reached only through local kernel driver probing (boot-time platform device enumeration, module load, or sysfs bind), not via network or USB packet handling. This is the highest defensible attack vector for this platform-driver probe bug.\nAC:L - Once probe runs on affected OMAP hardware, the premature of_node_put() deterministically frees the device_node before subsequent property/IRQ reads on the same pointer, with no race or attacker-uncontrollable timing required.\nPR:N - On OMAP3/OMAP4 systems with the driver built-in, the vulnerable probe path executes automatically at every boot without any software privileges; an attacker only needs the ability to power-cycle or reboot the device (e.g., a public OMAP kiosk or embedded controller).\nUI:N - Exploitation requires no victim interaction such as opening files or plugging in USB devices; the bug fires during kernel driver initialization on affected hardware.\nS:U - Impact is confined to kernel memory corruption and privilege boundaries within the host kernel; OMAP MUSB is an embedded SoC USB controller, not a hypervisor or cross-VM boundary.\nC:H - The use-after-free on a freed device_node structure allows reads of reallocated slab memory through of_property_read_u32() and of_parse_phandle(), enabling kernel information disclosure.\nI:H - UAF on the device_node heap object can corrupt kernel metadata and be leveraged for controlled writes or code execution through heap grooming during probe.\nA:H - Reading freed device_node memory during probe can cause kernel oops/panic and brick boot on OMAP systems, making the device unavailable until power-cycled or reflashed."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/musb/omap2430.c"],"versions":[{"version":"22b60658a90260e3fbd57824e3afe5682c6afcf5","lessThan":"632fd888fe33083927e29ef651ac1aba345edd9e","status":"affected","versionType":"git"},{"version":"ffbe2feac59b37c8dc536727552b4f375e1b9aec","lessThan":"b987f380620b38c84f054d5ff5c05861a7c2203b","status":"affected","versionType":"git"},{"version":"ffbe2feac59b37c8dc536727552b4f375e1b9aec","lessThan":"27e62532228dc42367bb43ebbcd7bf49d8db2b0d","status":"affected","versionType":"git"},{"version":"ffbe2feac59b37c8dc536727552b4f375e1b9aec","lessThan":"69f9f2b30af03d9b6e83f78fb0f734b6066d4678","status":"affected","versionType":"git"},{"version":"ffbe2feac59b37c8dc536727552b4f375e1b9aec","lessThan":"d53e4c41331f57b9fd78cbf3e480c6ce20aea07b","status":"affected","versionType":"git"},{"version":"ffbe2feac59b37c8dc536727552b4f375e1b9aec","lessThan":"e194ce048f5a6c549b3a23a8c568c6470f40f772","status":"affected","versionType":"git"},{"version":"fed43efc00ba6ac8c6b95828cd5acfa3d45eca4d","status":"affected","versionType":"git"},{"version":"6.1.2","lessThan":"6.1.176","status":"affected","versionType":"semver"},{"version":"6.0.16","lessThan":"6.1","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/musb/omap2430.c"],"versions":[{"version":"6.2","status":"affected"},{"version":"0","lessThan":"6.2","status":"unaffected","versionType":"semver"},{"version":"6.1.176","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.143","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.93","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.35","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.12","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","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":"6.1.2","versionEndExcluding":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.12.93"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.18.35"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"7.0.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"7.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0.16"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/632fd888fe33083927e29ef651ac1aba345edd9e"},{"url":"https://git.kernel.org/stable/c/b987f380620b38c84f054d5ff5c05861a7c2203b"},{"url":"https://git.kernel.org/stable/c/27e62532228dc42367bb43ebbcd7bf49d8db2b0d"},{"url":"https://git.kernel.org/stable/c/69f9f2b30af03d9b6e83f78fb0f734b6066d4678"},{"url":"https://git.kernel.org/stable/c/d53e4c41331f57b9fd78cbf3e480c6ce20aea07b"},{"url":"https://git.kernel.org/stable/c/e194ce048f5a6c549b3a23a8c568c6470f40f772"}],"title":"usb: musb: omap2430: Fix use-after-free in omap2430_probe()","x_generator":{"engine":"bippy-1.2.0"}}}}