{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38722","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T04:51:24.033Z","datePublished":"2025-09-04T15:33:15.641Z","dateUpdated":"2026-05-11T21:33:43.191Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:33:43.191Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nhabanalabs: fix UAF in export_dmabuf()\n\nAs soon as we'd inserted a file reference into descriptor table, another\nthread could close it.  That's fine for the case when all we are doing is\nreturning that descriptor to userland (it's a race, but it's a userland\nrace and there's nothing the kernel can do about it).  However, if we\nfollow fd_install() with any kind of access to objects that would be\ndestroyed on close (be it the struct file itself or anything destroyed\nby its ->release()), we have a UAF.\n\ndma_buf_fd() is a combination of reserving a descriptor and fd_install().\nhabanalabs export_dmabuf() calls it and then proceeds to access the\nobjects destroyed on close.  In particular, it grabs an extra reference to\nanother struct file that will be dropped as part of ->release() for ours;\nthat \"will be\" is actually \"might have already been\".\n\nFix that by reserving descriptor before anything else and do fd_install()\nonly when everything had been set up.  As a side benefit, we no longer\nhave the failure exit with file already created, but reference to\nunderlying file (as well as ->dmabuf_export_cnt, etc.) not grabbed yet;\nunlike dma_buf_fd(), fd_install() can't fail."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/accel/habanalabs/common/memory.c"],"versions":[{"version":"db1a8dd916aac986871f6b873a3aefad906f383a","lessThan":"c07886761fd6251db6938d4e747002e3d150d231","status":"affected","versionType":"git"},{"version":"db1a8dd916aac986871f6b873a3aefad906f383a","lessThan":"40deceb38f9db759772d1c289c28fd2a543f57fc","status":"affected","versionType":"git"},{"version":"db1a8dd916aac986871f6b873a3aefad906f383a","lessThan":"55c232d7e0241f1d5120b595e7a9de24c75ed3d8","status":"affected","versionType":"git"},{"version":"db1a8dd916aac986871f6b873a3aefad906f383a","lessThan":"33927f3d0ecdcff06326d6e4edb6166aed42811c","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/accel/habanalabs/common/memory.c"],"versions":[{"version":"5.16","status":"affected"},{"version":"0","lessThan":"5.16","status":"unaffected","versionType":"semver"},{"version":"6.12.43","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.15.11","lessThanOrEqual":"6.15.*","status":"unaffected","versionType":"semver"},{"version":"6.16.2","lessThanOrEqual":"6.16.*","status":"unaffected","versionType":"semver"},{"version":"6.17","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":"5.16","versionEndExcluding":"6.12.43"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.15.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.16.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.17"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c07886761fd6251db6938d4e747002e3d150d231"},{"url":"https://git.kernel.org/stable/c/40deceb38f9db759772d1c289c28fd2a543f57fc"},{"url":"https://git.kernel.org/stable/c/55c232d7e0241f1d5120b595e7a9de24c75ed3d8"},{"url":"https://git.kernel.org/stable/c/33927f3d0ecdcff06326d6e4edb6166aed42811c"}],"title":"habanalabs: fix UAF in export_dmabuf()","x_generator":{"engine":"bippy-1.2.0"}}}}