{"id":"CVE-2022-50772","state":"PUBLISHED","title":"netdevsim: fix memory leak in nsim_bus_dev_new()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetdevsim: fix memory leak in nsim_bus_dev_new()\n\nIf device_register() failed in nsim_bus_dev_new(), the value of reference\nin nsim_bus_dev->dev is 1. obj->name in nsim_bus_dev->dev will not be\nreleased.\n\nunreferenced object 0xffff88810352c480 (size 16):\n  comm \"echo\", pid 5691, jiffies 4294945921 (age 133.270s)\n  hex dump (first 16 bytes):\n    6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00  netdevsim1......\n  backtrace:\n    [<000000005e2e5e26>] __kmalloc_node_track_caller+0x3a/0xb0\n    [<0000000094ca4fc8>] kvasprintf+0xc3/0x160\n    [<00000000aad09bcc>] kvasprintf_const+0x55/0x180\n    [<000000009bac868d>] kobject_set_name_vargs+0x56/0x150\n    [<000000007c1a5d70>] dev_set_name+0xbb/0xf0\n    [<00000000ad0d126b>] device_add+0x1f8/0x1cb0\n    [<00000000c222ae24>] new_device_store+0x3b6/0x5e0\n    [<0000000043593421>] bus_attr_store+0x72/0xa0\n    [<00000000cbb1833a>] sysfs_kf_write+0x106/0x160\n    [<00000000d0dedb8a>] kernfs_fop_write_iter+0x3a8/0x5a0\n    [<00000000770b66e2>] vfs_write+0x8f0/0xc80\n    [<0000000078bb39be>] ksys_write+0x106/0x210\n    [<00000000005e55a4>] do_syscall_64+0x35/0x80\n    [<00000000eaa40bbc>] entry_SYSCALL_64_after_hwframe+0x46/0xb0","publishedAt":"2025-12-24T13:06:01.170Z","updatedAt":"2026-05-11T19:25:14.704Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"40e4fe4ce115c409c3e2fbb247085103ef1cc755","status":"affected","lessThan":"77579e4065295071fbd9662f03430dca5b50b086","versionType":"git"},{"version":"40e4fe4ce115c409c3e2fbb247085103ef1cc755","status":"affected","lessThan":"cf2010aa1c739bab067cbc90b690d28eaa0b47da","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/netdevsim/bus.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"6.0.7","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/net/netdevsim/bus.c"]}],"references":["https://git.kernel.org/stable/c/77579e4065295071fbd9662f03430dca5b50b086","https://git.kernel.org/stable/c/cf2010aa1c739bab067cbc90b690d28eaa0b47da"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50772.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50772","state":"PUBLISHED","datePublished":"2025-12-24T13:06:01.170Z","dateUpdated":"2026-05-11T19:25:14.704Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-24T13:02:21.547Z"},"containers":{"cna":{"title":"netdevsim: fix memory leak in nsim_bus_dev_new()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetdevsim: fix memory leak in nsim_bus_dev_new()\n\nIf device_register() failed in nsim_bus_dev_new(), the value of reference\nin nsim_bus_dev->dev is 1. obj->name in nsim_bus_dev->dev will not be\nreleased.\n\nunreferenced object 0xffff88810352c480 (size 16):\n  comm \"echo\", pid 5691, jiffies 4294945921 (age 133.270s)\n  hex dump (first 16 bytes):\n    6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00  netdevsim1......\n  backtrace:\n    [<000000005e2e5e26>] __kmalloc_node_track_caller+0x3a/0xb0\n    [<0000000094ca4fc8>] kvasprintf+0xc3/0x160\n    [<00000000aad09bcc>] kvasprintf_const+0x55/0x180\n    [<000000009bac868d>] kobject_set_name_vargs+0x56/0x150\n    [<000000007c1a5d70>] dev_set_name+0xbb/0xf0\n    [<00000000ad0d126b>] device_add+0x1f8/0x1cb0\n    [<00000000c222ae24>] new_device_store+0x3b6/0x5e0\n    [<0000000043593421>] bus_attr_store+0x72/0xa0\n    [<00000000cbb1833a>] sysfs_kf_write+0x106/0x160\n    [<00000000d0dedb8a>] kernfs_fop_write_iter+0x3a8/0x5a0\n    [<00000000770b66e2>] vfs_write+0x8f0/0xc80\n    [<0000000078bb39be>] ksys_write+0x106/0x210\n    [<00000000005e55a4>] do_syscall_64+0x35/0x80\n    [<00000000eaa40bbc>] entry_SYSCALL_64_after_hwframe+0x46/0xb0"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"40e4fe4ce115c409c3e2fbb247085103ef1cc755","status":"affected","lessThan":"77579e4065295071fbd9662f03430dca5b50b086","versionType":"git"},{"version":"40e4fe4ce115c409c3e2fbb247085103ef1cc755","status":"affected","lessThan":"cf2010aa1c739bab067cbc90b690d28eaa0b47da","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/netdevsim/bus.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"6.0.7","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/net/netdevsim/bus.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/77579e4065295071fbd9662f03430dca5b50b086"},{"url":"https://git.kernel.org/stable/c/cf2010aa1c739bab067cbc90b690d28eaa0b47da"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:25:14.704Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.0.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}