{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50725","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-12-24T12:20:40.330Z","datePublished":"2025-12-24T12:22:46.939Z","dateUpdated":"2026-05-11T19:24:18.626Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:24:18.626Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: vidtv: Fix use-after-free in vidtv_bridge_dvb_init()\n\nKASAN reports a use-after-free:\nBUG: KASAN: use-after-free in dvb_dmxdev_release+0x4d5/0x5d0 [dvb_core]\nCall Trace:\n ...\n dvb_dmxdev_release+0x4d5/0x5d0 [dvb_core]\n vidtv_bridge_probe+0x7bf/0xa40 [dvb_vidtv_bridge]\n platform_probe+0xb6/0x170\n ...\nAllocated by task 1238:\n ...\n dvb_register_device+0x1a7/0xa70 [dvb_core]\n dvb_dmxdev_init+0x2af/0x4a0 [dvb_core]\n vidtv_bridge_probe+0x766/0xa40 [dvb_vidtv_bridge]\n ...\nFreed by task 1238:\n dvb_register_device+0x6d2/0xa70 [dvb_core]\n dvb_dmxdev_init+0x2af/0x4a0 [dvb_core]\n vidtv_bridge_probe+0x766/0xa40 [dvb_vidtv_bridge]\n ...\n\nIt is because the error handling in vidtv_bridge_dvb_init() is wrong.\n\nFirst, vidtv_bridge_dmx(dev)_init() will clean themselves when fail, but\ngoto fail_dmx(_dev): calls release functions again, which causes\nuse-after-free.\n\nAlso, in fail_fe, fail_tuner_probe and fail_demod_probe, j = i will cause\nout-of-bound when i finished its loop (i == NUM_FE). And the loop\nreleasing is wrong, although now NUM_FE is 1 so it won't cause problem.\n\nFix this by correctly releasing everything."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/test-drivers/vidtv/vidtv_bridge.c"],"versions":[{"version":"f90cf6079bf67988f8b1ad1ade70fc89d0080905","lessThan":"0369af6fe33d4053899b121b32e91f870b2cf0ae","status":"affected","versionType":"git"},{"version":"f90cf6079bf67988f8b1ad1ade70fc89d0080905","lessThan":"c290aa527fd832d278c6388a3ba53a9890fbd74a","status":"affected","versionType":"git"},{"version":"f90cf6079bf67988f8b1ad1ade70fc89d0080905","lessThan":"06398ce69571a43a8a0dd0f1bfe35d221f726a6a","status":"affected","versionType":"git"},{"version":"f90cf6079bf67988f8b1ad1ade70fc89d0080905","lessThan":"8a204a0b4a0d105229735222c515759ea2b126c1","status":"affected","versionType":"git"},{"version":"f90cf6079bf67988f8b1ad1ade70fc89d0080905","lessThan":"ba8d9405935097e296bcf7a942c3a01df0edb865","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/media/test-drivers/vidtv/vidtv_bridge.c"],"versions":[{"version":"5.10","status":"affected"},{"version":"0","lessThan":"5.10","status":"unaffected","versionType":"semver"},{"version":"5.10.163","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.86","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.0.16","lessThanOrEqual":"6.0.*","status":"unaffected","versionType":"semver"},{"version":"6.1.2","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.2","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":"5.10","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.15.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/0369af6fe33d4053899b121b32e91f870b2cf0ae"},{"url":"https://git.kernel.org/stable/c/c290aa527fd832d278c6388a3ba53a9890fbd74a"},{"url":"https://git.kernel.org/stable/c/06398ce69571a43a8a0dd0f1bfe35d221f726a6a"},{"url":"https://git.kernel.org/stable/c/8a204a0b4a0d105229735222c515759ea2b126c1"},{"url":"https://git.kernel.org/stable/c/ba8d9405935097e296bcf7a942c3a01df0edb865"}],"title":"media: vidtv: Fix use-after-free in vidtv_bridge_dvb_init()","x_generator":{"engine":"bippy-1.2.0"}}}}