{"id":"CVE-2022-50772","summary":"netdevsim: fix memory leak in nsim_bus_dev_new()","details":"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-\u003edev is 1. obj-\u003ename in nsim_bus_dev-\u003edev 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    [\u003c000000005e2e5e26\u003e] __kmalloc_node_track_caller+0x3a/0xb0\n    [\u003c0000000094ca4fc8\u003e] kvasprintf+0xc3/0x160\n    [\u003c00000000aad09bcc\u003e] kvasprintf_const+0x55/0x180\n    [\u003c000000009bac868d\u003e] kobject_set_name_vargs+0x56/0x150\n    [\u003c000000007c1a5d70\u003e] dev_set_name+0xbb/0xf0\n    [\u003c00000000ad0d126b\u003e] device_add+0x1f8/0x1cb0\n    [\u003c00000000c222ae24\u003e] new_device_store+0x3b6/0x5e0\n    [\u003c0000000043593421\u003e] bus_attr_store+0x72/0xa0\n    [\u003c00000000cbb1833a\u003e] sysfs_kf_write+0x106/0x160\n    [\u003c00000000d0dedb8a\u003e] kernfs_fop_write_iter+0x3a8/0x5a0\n    [\u003c00000000770b66e2\u003e] vfs_write+0x8f0/0xc80\n    [\u003c0000000078bb39be\u003e] ksys_write+0x106/0x210\n    [\u003c00000000005e55a4\u003e] do_syscall_64+0x35/0x80\n    [\u003c00000000eaa40bbc\u003e] entry_SYSCALL_64_after_hwframe+0x46/0xb0","modified":"2026-08-12T03:30:41.320249434Z","published":"2025-12-24T13:06:01.170Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50772.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/77579e4065295071fbd9662f03430dca5b50b086"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cf2010aa1c739bab067cbc90b690d28eaa0b47da"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50772.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50772"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"40e4fe4ce115c409c3e2fbb247085103ef1cc755"},{"fixed":"77579e4065295071fbd9662f03430dca5b50b086"},{"fixed":"cf2010aa1c739bab067cbc90b690d28eaa0b47da"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50772.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.2.0"},{"fixed":"6.0.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50772.json"}}],"schema_version":"1.9.0"}