{"id":"CVE-2022-50244","state":"PUBLISHED","title":"cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()\n\nIf device_register() fails in cxl_pci_afu|adapter(), the device\nis not added, device_unregister() can not be called in the error\npath, otherwise it will cause a null-ptr-deref because of removing\nnot added device.\n\nAs comment of device_register() says, it should use put_device() to give\nup the reference in the error path. So split device_unregister() into\ndevice_del() and put_device(), then goes to put dev when register fails.","publishedAt":"2025-09-15T14:02:01.364Z","updatedAt":"2026-05-11T19:15:33.665Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"82e68432668ae75b4c814d160f6987ecb0681273","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"82e5481428faf11c79b9c094dd24a1849bbf64ac","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"c4b2e35df919d99bbbed033c2fa0b607f9f463b5","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"361412dae1690d4b5df6f92fc943cdc773c95cbc","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"22511eefa61db26e12c97dd7ada3071dbdfcb004","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"139abd4c626a6f7ce02789ed5f73aa2256e0542b","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"02cd3032b154fa02fdf90e7467abaeed889330b2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/misc/cxl/pci.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.18","versionType":"semver"},{"version":"4.9.337","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.303","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.270","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/misc/cxl/pci.c"]}],"references":["https://git.kernel.org/stable/c/82e68432668ae75b4c814d160f6987ecb0681273","https://git.kernel.org/stable/c/82e5481428faf11c79b9c094dd24a1849bbf64ac","https://git.kernel.org/stable/c/c4b2e35df919d99bbbed033c2fa0b607f9f463b5","https://git.kernel.org/stable/c/361412dae1690d4b5df6f92fc943cdc773c95cbc","https://git.kernel.org/stable/c/0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec","https://git.kernel.org/stable/c/22511eefa61db26e12c97dd7ada3071dbdfcb004","https://git.kernel.org/stable/c/139abd4c626a6f7ce02789ed5f73aa2256e0542b","https://git.kernel.org/stable/c/2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339","https://git.kernel.org/stable/c/02cd3032b154fa02fdf90e7467abaeed889330b2"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50244.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50244","state":"PUBLISHED","datePublished":"2025-09-15T14:02:01.364Z","dateUpdated":"2026-05-11T19:15:33.665Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-15T13:58:00.971Z"},"containers":{"cna":{"title":"cxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncxl: fix possible null-ptr-deref in cxl_pci_init_afu|adapter()\n\nIf device_register() fails in cxl_pci_afu|adapter(), the device\nis not added, device_unregister() can not be called in the error\npath, otherwise it will cause a null-ptr-deref because of removing\nnot added device.\n\nAs comment of device_register() says, it should use put_device() to give\nup the reference in the error path. So split device_unregister() into\ndevice_del() and put_device(), then goes to put dev when register fails."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"82e68432668ae75b4c814d160f6987ecb0681273","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"82e5481428faf11c79b9c094dd24a1849bbf64ac","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"c4b2e35df919d99bbbed033c2fa0b607f9f463b5","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"361412dae1690d4b5df6f92fc943cdc773c95cbc","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"22511eefa61db26e12c97dd7ada3071dbdfcb004","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"139abd4c626a6f7ce02789ed5f73aa2256e0542b","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339","versionType":"git"},{"version":"f204e0b8cedd7da1dfcfd05ed6b7692737e24029","status":"affected","lessThan":"02cd3032b154fa02fdf90e7467abaeed889330b2","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/misc/cxl/pci.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.18","versionType":"semver"},{"version":"4.9.337","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.303","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.270","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/misc/cxl/pci.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/82e68432668ae75b4c814d160f6987ecb0681273"},{"url":"https://git.kernel.org/stable/c/82e5481428faf11c79b9c094dd24a1849bbf64ac"},{"url":"https://git.kernel.org/stable/c/c4b2e35df919d99bbbed033c2fa0b607f9f463b5"},{"url":"https://git.kernel.org/stable/c/361412dae1690d4b5df6f92fc943cdc773c95cbc"},{"url":"https://git.kernel.org/stable/c/0f63c0ddc2ea20d783d29243f4dbe0f9e95dfdec"},{"url":"https://git.kernel.org/stable/c/22511eefa61db26e12c97dd7ada3071dbdfcb004"},{"url":"https://git.kernel.org/stable/c/139abd4c626a6f7ce02789ed5f73aa2256e0542b"},{"url":"https://git.kernel.org/stable/c/2f5fd31b2f24b9b8a80ab566fd8c4e1e94cb4339"},{"url":"https://git.kernel.org/stable/c/02cd3032b154fa02fdf90e7467abaeed889330b2"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:15:33.665Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18","versionEndExcluding":"4.9.337"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18","versionEndExcluding":"4.14.303"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18","versionEndExcluding":"4.19.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18","versionEndExcluding":"5.4.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18","versionEndExcluding":"5.15.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.18","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}