{"id":"CVE-2022-49803","state":"PUBLISHED","title":"netdevsim: Fix memory leak of nsim_dev->fa_cookie","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetdevsim: Fix memory leak of nsim_dev->fa_cookie\n\nkmemleak reports this issue:\n\nunreferenced object 0xffff8881bac872d0 (size 8):\n  comm \"sh\", pid 58603, jiffies 4481524462 (age 68.065s)\n  hex dump (first 8 bytes):\n    04 00 00 00 de ad be ef                          ........\n  backtrace:\n    [<00000000c80b8577>] __kmalloc+0x49/0x150\n    [<000000005292b8c6>] nsim_dev_trap_fa_cookie_write+0xc1/0x210 [netdevsim]\n    [<0000000093d78e77>] full_proxy_write+0xf3/0x180\n    [<000000005a662c16>] vfs_write+0x1c5/0xaf0\n    [<000000007aabf84a>] ksys_write+0xed/0x1c0\n    [<000000005f1d2e47>] do_syscall_64+0x3b/0x90\n    [<000000006001c6ec>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe issue occurs in the following scenarios:\n\nnsim_dev_trap_fa_cookie_write()\n  kmalloc() fa_cookie\n  nsim_dev->fa_cookie = fa_cookie\n..\nnsim_drv_remove()\n\nThe fa_cookie allocked in nsim_dev_trap_fa_cookie_write() is not freed. To\nfix, add kfree(nsim_dev->fa_cookie) to nsim_drv_remove().","publishedAt":"2025-05-01T14:09:30.971Z","updatedAt":"2026-07-04T11:50:21.645Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d3cbb907ae57fe5da314b51d949b617b538bdeae","status":"affected","lessThan":"7d79725a7073d86b9185f87718e22f3d65115801","versionType":"git"},{"version":"d3cbb907ae57fe5da314b51d949b617b538bdeae","status":"affected","lessThan":"6d463ddd0107d4188229d996dcdd45c99bad8af7","versionType":"git"},{"version":"d3cbb907ae57fe5da314b51d949b617b538bdeae","status":"affected","lessThan":"207edad5717e0a5709ce8467f0eff41c607835c9","versionType":"git"},{"version":"d3cbb907ae57fe5da314b51d949b617b538bdeae","status":"affected","lessThan":"064bc7312bd09a48798418663090be0c776183db","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/netdevsim/dev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.7","versionType":"semver"},{"version":"5.10.260","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.10","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/dev.c"]}],"references":["https://git.kernel.org/stable/c/7d79725a7073d86b9185f87718e22f3d65115801","https://git.kernel.org/stable/c/6d463ddd0107d4188229d996dcdd45c99bad8af7","https://git.kernel.org/stable/c/207edad5717e0a5709ce8467f0eff41c607835c9","https://git.kernel.org/stable/c/064bc7312bd09a48798418663090be0c776183db"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49803.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49803","state":"PUBLISHED","datePublished":"2025-05-01T14:09:30.971Z","dateUpdated":"2026-07-04T11:50:21.645Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-05-01T14:05:17.225Z"},"containers":{"cna":{"title":"netdevsim: Fix memory leak of nsim_dev->fa_cookie","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetdevsim: Fix memory leak of nsim_dev->fa_cookie\n\nkmemleak reports this issue:\n\nunreferenced object 0xffff8881bac872d0 (size 8):\n  comm \"sh\", pid 58603, jiffies 4481524462 (age 68.065s)\n  hex dump (first 8 bytes):\n    04 00 00 00 de ad be ef                          ........\n  backtrace:\n    [<00000000c80b8577>] __kmalloc+0x49/0x150\n    [<000000005292b8c6>] nsim_dev_trap_fa_cookie_write+0xc1/0x210 [netdevsim]\n    [<0000000093d78e77>] full_proxy_write+0xf3/0x180\n    [<000000005a662c16>] vfs_write+0x1c5/0xaf0\n    [<000000007aabf84a>] ksys_write+0xed/0x1c0\n    [<000000005f1d2e47>] do_syscall_64+0x3b/0x90\n    [<000000006001c6ec>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nThe issue occurs in the following scenarios:\n\nnsim_dev_trap_fa_cookie_write()\n  kmalloc() fa_cookie\n  nsim_dev->fa_cookie = fa_cookie\n..\nnsim_drv_remove()\n\nThe fa_cookie allocked in nsim_dev_trap_fa_cookie_write() is not freed. To\nfix, add kfree(nsim_dev->fa_cookie) to nsim_drv_remove()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d3cbb907ae57fe5da314b51d949b617b538bdeae","status":"affected","lessThan":"7d79725a7073d86b9185f87718e22f3d65115801","versionType":"git"},{"version":"d3cbb907ae57fe5da314b51d949b617b538bdeae","status":"affected","lessThan":"6d463ddd0107d4188229d996dcdd45c99bad8af7","versionType":"git"},{"version":"d3cbb907ae57fe5da314b51d949b617b538bdeae","status":"affected","lessThan":"207edad5717e0a5709ce8467f0eff41c607835c9","versionType":"git"},{"version":"d3cbb907ae57fe5da314b51d949b617b538bdeae","status":"affected","lessThan":"064bc7312bd09a48798418663090be0c776183db","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/netdevsim/dev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.7","versionType":"semver"},{"version":"5.10.260","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.10","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/dev.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/7d79725a7073d86b9185f87718e22f3d65115801"},{"url":"https://git.kernel.org/stable/c/6d463ddd0107d4188229d996dcdd45c99bad8af7"},{"url":"https://git.kernel.org/stable/c/207edad5717e0a5709ce8467f0eff41c607835c9"},{"url":"https://git.kernel.org/stable/c/064bc7312bd09a48798418663090be0c776183db"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-07-04T11:50:21.645Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.10.260"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}