{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50702","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-12-24T10:53:15.517Z","datePublished":"2025-12-24T10:55:17.831Z","dateUpdated":"2026-05-11T19:23:50.676Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:23:50.676Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa_sim: fix possible memory leak in vdpasim_net_init() and vdpasim_blk_init()\n\nInject fault while probing module, if device_register() fails in\nvdpasim_net_init() or vdpasim_blk_init(), but the refcount of kobject is\nnot decreased to 0, the name allocated in dev_set_name() is leaked.\nFix this by calling put_device(), so that name can be freed in\ncallback function kobject_cleanup().\n\n(vdpa_sim_net)\nunreferenced object 0xffff88807eebc370 (size 16):\n  comm \"modprobe\", pid 3848, jiffies 4362982860 (age 18.153s)\n  hex dump (first 16 bytes):\n    76 64 70 61 73 69 6d 5f 6e 65 74 00 6b 6b 6b a5  vdpasim_net.kkk.\n  backtrace:\n    [<ffffffff8174f19e>] __kmalloc_node_track_caller+0x4e/0x150\n    [<ffffffff81731d53>] kstrdup+0x33/0x60\n    [<ffffffff83a5d421>] kobject_set_name_vargs+0x41/0x110\n    [<ffffffff82d87aab>] dev_set_name+0xab/0xe0\n    [<ffffffff82d91a23>] device_add+0xe3/0x1a80\n    [<ffffffffa0270013>] 0xffffffffa0270013\n    [<ffffffff81001c27>] do_one_initcall+0x87/0x2e0\n    [<ffffffff813739cb>] do_init_module+0x1ab/0x640\n    [<ffffffff81379d20>] load_module+0x5d00/0x77f0\n    [<ffffffff8137bc40>] __do_sys_finit_module+0x110/0x1b0\n    [<ffffffff83c4d505>] do_syscall_64+0x35/0x80\n    [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\n(vdpa_sim_blk)\nunreferenced object 0xffff8881070c1250 (size 16):\n  comm \"modprobe\", pid 6844, jiffies 4364069319 (age 17.572s)\n  hex dump (first 16 bytes):\n    76 64 70 61 73 69 6d 5f 62 6c 6b 00 6b 6b 6b a5  vdpasim_blk.kkk.\n  backtrace:\n    [<ffffffff8174f19e>] __kmalloc_node_track_caller+0x4e/0x150\n    [<ffffffff81731d53>] kstrdup+0x33/0x60\n    [<ffffffff83a5d421>] kobject_set_name_vargs+0x41/0x110\n    [<ffffffff82d87aab>] dev_set_name+0xab/0xe0\n    [<ffffffff82d91a23>] device_add+0xe3/0x1a80\n    [<ffffffffa0220013>] 0xffffffffa0220013\n    [<ffffffff81001c27>] do_one_initcall+0x87/0x2e0\n    [<ffffffff813739cb>] do_init_module+0x1ab/0x640\n    [<ffffffff81379d20>] load_module+0x5d00/0x77f0\n    [<ffffffff8137bc40>] __do_sys_finit_module+0x110/0x1b0\n    [<ffffffff83c4d505>] do_syscall_64+0x35/0x80\n    [<ffffffff83e0006a>] entry_SYSCALL_64_after_hwframe+0x46/0xb0"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/vdpa/vdpa_sim/vdpa_sim_blk.c","drivers/vdpa/vdpa_sim/vdpa_sim_net.c"],"versions":[{"version":"a3c06ae158dd6fa8336157c31d9234689d068d02","lessThan":"586e6fd7d581f987f7d0d2592edf0b26397e783e","status":"affected","versionType":"git"},{"version":"a3c06ae158dd6fa8336157c31d9234689d068d02","lessThan":"5be953e353fe421f2983e1fd37f07fba97edbffc","status":"affected","versionType":"git"},{"version":"a3c06ae158dd6fa8336157c31d9234689d068d02","lessThan":"337c24d817e28dd454ca22f1063dfad20822426e","status":"affected","versionType":"git"},{"version":"a3c06ae158dd6fa8336157c31d9234689d068d02","lessThan":"aeca7ff254843d49a8739f07f7dab1341450111d","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/vdpa/vdpa_sim/vdpa_sim_blk.c","drivers/vdpa/vdpa_sim/vdpa_sim_net.c"],"versions":[{"version":"5.12","status":"affected"},{"version":"0","lessThan":"5.12","status":"unaffected","versionType":"semver"},{"version":"5.15.87","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.0.19","lessThanOrEqual":"6.0.*","status":"unaffected","versionType":"semver"},{"version":"6.1.5","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":"5.12","versionEndExcluding":"5.15.87"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.0.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/586e6fd7d581f987f7d0d2592edf0b26397e783e"},{"url":"https://git.kernel.org/stable/c/5be953e353fe421f2983e1fd37f07fba97edbffc"},{"url":"https://git.kernel.org/stable/c/337c24d817e28dd454ca22f1063dfad20822426e"},{"url":"https://git.kernel.org/stable/c/aeca7ff254843d49a8739f07f7dab1341450111d"}],"title":"vdpa_sim: fix possible memory leak in vdpasim_net_init() and vdpasim_blk_init()","x_generator":{"engine":"bippy-1.2.0"}}}}