{"id":"CVE-2026-72476","summary":"dmaengine: Fix possible use after free","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: Fix possible use after free\n\nIn dma_release_channel(), check chan-\u003edevice-\u003eprivatecnt after call\ndma_chan_put(). However, dma_chan_put() call dma_device_put() which could\nrelease the last reference of the device if the DMA provider is already\ngone and hence free it.\n\nFixes it by moving dma_chan_put() after the check.","modified":"2026-08-18T03:56:26.455828954Z","published":"2026-08-15T05:57:16.396Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72476.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0bc191050c3253da8ef4bfaf157c44efed6e22cd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/329ec20a86091d2a6e5b4fe507545e7d678a22a2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3b0240483dc977dbec4f3bc7a5383d4691ecb625"},{"type":"WEB","url":"https://git.kernel.org/stable/c/444f96066937f3fdf0e79b53289cff223c7d638b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5876f38b67a309c00628942cb25679749b53b397"},{"type":"WEB","url":"https://git.kernel.org/stable/c/92f853f0645aebf1d05d333e97ab7c342ace1892"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ab438a9efb9042c79d2f8db28a326d55feb8591f"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72476.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72476"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0f571515c332e00b3515dbe0859ceaa30ab66e00"},{"fixed":"444f96066937f3fdf0e79b53289cff223c7d638b"},{"fixed":"ab438a9efb9042c79d2f8db28a326d55feb8591f"},{"fixed":"9bdc8dce4068dadbdf7cf5ad6d4983e2afffedce"},{"fixed":"5876f38b67a309c00628942cb25679749b53b397"},{"fixed":"3b0240483dc977dbec4f3bc7a5383d4691ecb625"},{"fixed":"329ec20a86091d2a6e5b4fe507545e7d678a22a2"},{"fixed":"0bc191050c3253da8ef4bfaf157c44efed6e22cd"},{"fixed":"92f853f0645aebf1d05d333e97ab7c342ace1892"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72476.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.30"},{"fixed":"5.10.261"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.212"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72476.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}