{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"f75be9885d49e3717de962345c4572ddab52b178","status":"affected","version":"39621c5808f5dda75d03dc4b2d4d2b13a5a1c34b","versionType":"git"},{"lessThan":"bdfe34597139cfcecd47a2eb97fea44d77157491","status":"affected","version":"39621c5808f5dda75d03dc4b2d4d2b13a5a1c34b","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"6.0"},{"lessThan":"6.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.0.*","status":"unaffected","version":"6.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.1","versionType":"original_commit_for_fix"}]}],"cveId":"CVE-2022-49784","cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/amd/uncore: Fix memory leak for events array\n\nWhen a CPU comes online, the per-CPU NB and LLC uncore contexts are\nfreed but not the events array within the context structure. This\ncauses a memory leak as identified by the kmemleak detector.\n\n  [...]\n  unreferenced object 0xffff8c5944b8e320 (size 32):\n    comm \"swapper/0\", pid 1, jiffies 4294670387 (age 151.072s)\n    hex dump (first 32 bytes):\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    backtrace:\n      [<000000000759fb79>] amd_uncore_cpu_up_prepare+0xaf/0x230\n      [<00000000ddc9e126>] cpuhp_invoke_callback+0x2cf/0x470\n      [<0000000093e727d4>] cpuhp_issue_call+0x14d/0x170\n      [<0000000045464d54>] __cpuhp_setup_state_cpuslocked+0x11e/0x330\n      [<0000000069f67cbd>] __cpuhp_setup_state+0x6b/0x110\n      [<0000000015365e0f>] amd_uncore_init+0x260/0x321\n      [<00000000089152d2>] do_one_initcall+0x3f/0x1f0\n      [<000000002d0bd18d>] kernel_init_freeable+0x1ca/0x212\n      [<0000000030be8dde>] kernel_init+0x11/0x120\n      [<0000000059709e59>] ret_from_fork+0x22/0x30\n  unreferenced object 0xffff8c5944b8dd40 (size 64):\n    comm \"swapper/0\", pid 1, jiffies 4294670387 (age 151.072s)\n    hex dump (first 32 bytes):\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    backtrace:\n      [<00000000306efe8b>] amd_uncore_cpu_up_prepare+0x183/0x230\n      [<00000000ddc9e126>] cpuhp_invoke_callback+0x2cf/0x470\n      [<0000000093e727d4>] cpuhp_issue_call+0x14d/0x170\n      [<0000000045464d54>] __cpuhp_setup_state_cpuslocked+0x11e/0x330\n      [<0000000069f67cbd>] __cpuhp_setup_state+0x6b/0x110\n      [<0000000015365e0f>] amd_uncore_init+0x260/0x321\n      [<00000000089152d2>] do_one_initcall+0x3f/0x1f0\n      [<000000002d0bd18d>] kernel_init_freeable+0x1ca/0x212\n      [<0000000030be8dde>] kernel_init+0x11/0x120\n      [<0000000059709e59>] ret_from_fork+0x22/0x30\n  [...]\n\nFix the problem by freeing the events array before freeing the uncore\ncontext.","epss":{"date":"2026-11-05","percentile":0.06471,"score":0.0017},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793908188402,"publishedAt":1746108557695,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/f75be9885d49e3717de962345c4572ddab52b178"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/bdfe34597139cfcecd47a2eb97fea44d77157491"}],"remediation":[],"revision":"2e63d194a25c5873219e6328ecf7b57d9702ae7868561abb52836b078ad9f4b5","sources":[{"modifiedAt":1793908188402,"name":"CNA: Linux","retrievedAt":1793909421379,"url":"https://www.cve.org/CVERecord?id=CVE-2022-49784"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793909456479,"url":"https://api.first.org/data/v1/epss?cve=CVE-2022-49784"}],"ssvc":{"assessedAt":1793908072651,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"perf/x86/amd/uncore: Fix memory leak for events array","updatedAt":1793909456479}