{"id":"CVE-2022-50359","state":"PUBLISHED","title":"media: cx88: Fix a null-ptr-deref bug in buffer_prepare()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cx88: Fix a null-ptr-deref bug in buffer_prepare()\n\nWhen the driver calls cx88_risc_buffer() to prepare the buffer, the\nfunction call may fail, resulting in a empty buffer and null-ptr-deref\nlater in buffer_queue().\n\nThe following log can reveal it:\n\n[   41.822762] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI\n[   41.824488] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n[   41.828027] RIP: 0010:buffer_queue+0xc2/0x500\n[   41.836311] Call Trace:\n[   41.836945]  __enqueue_in_driver+0x141/0x360\n[   41.837262]  vb2_start_streaming+0x62/0x4a0\n[   41.838216]  vb2_core_streamon+0x1da/0x2c0\n[   41.838516]  __vb2_init_fileio+0x981/0xbc0\n[   41.839141]  __vb2_perform_fileio+0xbf9/0x1120\n[   41.840072]  vb2_fop_read+0x20e/0x400\n[   41.840346]  v4l2_read+0x215/0x290\n[   41.840603]  vfs_read+0x162/0x4c0\n\nFix this by checking the return value of cx88_risc_buffer()\n\n[hverkuil: fix coding style issues]","publishedAt":"2025-09-17T14:56:11.482Z","updatedAt":"2026-05-11T19:18:00.670Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"c76d04d2079a4b7369ce9a0e859c0f3f2250bcc1","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"10c99d1c46ea9cd940029e17bab11d021f315c21","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"4befc7ffa18ef9a4b70d854465313a345a06862f","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"9181af2dbf06e7f432e5dbe88d10b22343e851b9","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"c2257c8a501537afab276c306cb717b7260276e1","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"6f21976095c1e92454ab030976f95f40d652351b","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"704838040f3bdb4aa07ff4f26505a666a3defcfe","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"644d5a87ab1863eb606526ea743021752a17e9cb","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"2b064d91440b33fba5b452f2d1b31f13ae911d71","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/pci/cx88/cx88-vbi.c","drivers/media/pci/cx88/cx88-video.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"4.9.331","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.296","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.262","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.220","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.150","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.75","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.19.17","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0.3","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/pci/cx88/cx88-vbi.c","drivers/media/pci/cx88/cx88-video.c"]}],"references":["https://git.kernel.org/stable/c/c76d04d2079a4b7369ce9a0e859c0f3f2250bcc1","https://git.kernel.org/stable/c/10c99d1c46ea9cd940029e17bab11d021f315c21","https://git.kernel.org/stable/c/4befc7ffa18ef9a4b70d854465313a345a06862f","https://git.kernel.org/stable/c/9181af2dbf06e7f432e5dbe88d10b22343e851b9","https://git.kernel.org/stable/c/c2257c8a501537afab276c306cb717b7260276e1","https://git.kernel.org/stable/c/6f21976095c1e92454ab030976f95f40d652351b","https://git.kernel.org/stable/c/704838040f3bdb4aa07ff4f26505a666a3defcfe","https://git.kernel.org/stable/c/644d5a87ab1863eb606526ea743021752a17e9cb","https://git.kernel.org/stable/c/2b064d91440b33fba5b452f2d1b31f13ae911d71"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50359.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50359","state":"PUBLISHED","datePublished":"2025-09-17T14:56:11.482Z","dateUpdated":"2026-05-11T19:18:00.670Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-17T14:53:06.994Z"},"containers":{"cna":{"title":"media: cx88: Fix a null-ptr-deref bug in buffer_prepare()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cx88: Fix a null-ptr-deref bug in buffer_prepare()\n\nWhen the driver calls cx88_risc_buffer() to prepare the buffer, the\nfunction call may fail, resulting in a empty buffer and null-ptr-deref\nlater in buffer_queue().\n\nThe following log can reveal it:\n\n[   41.822762] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI\n[   41.824488] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\n[   41.828027] RIP: 0010:buffer_queue+0xc2/0x500\n[   41.836311] Call Trace:\n[   41.836945]  __enqueue_in_driver+0x141/0x360\n[   41.837262]  vb2_start_streaming+0x62/0x4a0\n[   41.838216]  vb2_core_streamon+0x1da/0x2c0\n[   41.838516]  __vb2_init_fileio+0x981/0xbc0\n[   41.839141]  __vb2_perform_fileio+0xbf9/0x1120\n[   41.840072]  vb2_fop_read+0x20e/0x400\n[   41.840346]  v4l2_read+0x215/0x290\n[   41.840603]  vfs_read+0x162/0x4c0\n\nFix this by checking the return value of cx88_risc_buffer()\n\n[hverkuil: fix coding style issues]"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"c76d04d2079a4b7369ce9a0e859c0f3f2250bcc1","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"10c99d1c46ea9cd940029e17bab11d021f315c21","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"4befc7ffa18ef9a4b70d854465313a345a06862f","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"9181af2dbf06e7f432e5dbe88d10b22343e851b9","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"c2257c8a501537afab276c306cb717b7260276e1","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"6f21976095c1e92454ab030976f95f40d652351b","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"704838040f3bdb4aa07ff4f26505a666a3defcfe","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"644d5a87ab1863eb606526ea743021752a17e9cb","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","status":"affected","lessThan":"2b064d91440b33fba5b452f2d1b31f13ae911d71","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/pci/cx88/cx88-vbi.c","drivers/media/pci/cx88/cx88-video.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.12","versionType":"semver"},{"version":"4.9.331","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.296","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.262","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.220","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.150","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.75","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.19.17","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0.3","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/media/pci/cx88/cx88-vbi.c","drivers/media/pci/cx88/cx88-video.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c76d04d2079a4b7369ce9a0e859c0f3f2250bcc1"},{"url":"https://git.kernel.org/stable/c/10c99d1c46ea9cd940029e17bab11d021f315c21"},{"url":"https://git.kernel.org/stable/c/4befc7ffa18ef9a4b70d854465313a345a06862f"},{"url":"https://git.kernel.org/stable/c/9181af2dbf06e7f432e5dbe88d10b22343e851b9"},{"url":"https://git.kernel.org/stable/c/c2257c8a501537afab276c306cb717b7260276e1"},{"url":"https://git.kernel.org/stable/c/6f21976095c1e92454ab030976f95f40d652351b"},{"url":"https://git.kernel.org/stable/c/704838040f3bdb4aa07ff4f26505a666a3defcfe"},{"url":"https://git.kernel.org/stable/c/644d5a87ab1863eb606526ea743021752a17e9cb"},{"url":"https://git.kernel.org/stable/c/2b064d91440b33fba5b452f2d1b31f13ae911d71"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:18:00.670Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"4.9.331"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"4.14.296"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"4.19.262"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.4.220"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.10.150"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.15.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"5.19.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.0.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.12","versionEndExcluding":"6.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2022-50359","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-01-14T18:32:56.872596Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","type":"CWE","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-14T18:42:57.957Z"}}]}}}