{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-27T17:58:24.762","vulnerabilities":[{"cve":{"id":"CVE-2023-53441","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-09-18T16:15:48.353","lastModified":"2026-01-14T20:16:04.250","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: cpumap: Fix memory leak in cpu_map_update_elem\n\nSyzkaller reported a memory leak as follows:\n\nBUG: memory leak\nunreferenced object 0xff110001198ef748 (size 192):\n  comm \"syz-executor.3\", pid 17672, jiffies 4298118891 (age 9.906s)\n  hex dump (first 32 bytes):\n    00 00 00 00 4a 19 00 00 80 ad e3 e4 fe ff c0 00  ....J...........\n    00 b2 d3 0c 01 00 11 ff 28 f5 8e 19 01 00 11 ff  ........(.......\n  backtrace:\n    [<ffffffffadd28087>] __cpu_map_entry_alloc+0xf7/0xb00\n    [<ffffffffadd28d8e>] cpu_map_update_elem+0x2fe/0x3d0\n    [<ffffffffadc6d0fd>] bpf_map_update_value.isra.0+0x2bd/0x520\n    [<ffffffffadc7349b>] map_update_elem+0x4cb/0x720\n    [<ffffffffadc7d983>] __se_sys_bpf+0x8c3/0xb90\n    [<ffffffffb029cc80>] do_syscall_64+0x30/0x40\n    [<ffffffffb0400099>] entry_SYSCALL_64_after_hwframe+0x61/0xc6\n\nBUG: memory leak\nunreferenced object 0xff110001198ef528 (size 192):\n  comm \"syz-executor.3\", pid 17672, jiffies 4298118891 (age 9.906s)\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    [<ffffffffadd281f0>] __cpu_map_entry_alloc+0x260/0xb00\n    [<ffffffffadd28d8e>] cpu_map_update_elem+0x2fe/0x3d0\n    [<ffffffffadc6d0fd>] bpf_map_update_value.isra.0+0x2bd/0x520\n    [<ffffffffadc7349b>] map_update_elem+0x4cb/0x720\n    [<ffffffffadc7d983>] __se_sys_bpf+0x8c3/0xb90\n    [<ffffffffb029cc80>] do_syscall_64+0x30/0x40\n    [<ffffffffb0400099>] entry_SYSCALL_64_after_hwframe+0x61/0xc6\n\nBUG: memory leak\nunreferenced object 0xff1100010fd93d68 (size 8):\n  comm \"syz-executor.3\", pid 17672, jiffies 4298118891 (age 9.906s)\n  hex dump (first 8 bytes):\n    00 00 00 00 00 00 00 00                          ........\n  backtrace:\n    [<ffffffffade5db3e>] kvmalloc_node+0x11e/0x170\n    [<ffffffffadd28280>] __cpu_map_entry_alloc+0x2f0/0xb00\n    [<ffffffffadd28d8e>] cpu_map_update_elem+0x2fe/0x3d0\n    [<ffffffffadc6d0fd>] bpf_map_update_value.isra.0+0x2bd/0x520\n    [<ffffffffadc7349b>] map_update_elem+0x4cb/0x720\n    [<ffffffffadc7d983>] __se_sys_bpf+0x8c3/0xb90\n    [<ffffffffb029cc80>] do_syscall_64+0x30/0x40\n    [<ffffffffb0400099>] entry_SYSCALL_64_after_hwframe+0x61/0xc6\n\nIn the cpu_map_update_elem flow, when kthread_stop is called before\ncalling the threadfn of rcpu->kthread, since the KTHREAD_SHOULD_STOP bit\nof kthread has been set by kthread_stop, the threadfn of rcpu->kthread\nwill never be executed, and rcpu->refcnt will never be 0, which will\nlead to the allocated rcpu, rcpu->queue and rcpu->queue->queue cannot be\nreleased.\n\nCalling kthread_stop before executing kthread's threadfn will return\n-EINTR. We can complete the release of memory resources in this state."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-401"}]},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-401"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.15.121","matchCriteriaId":"854671FA-2529-4D29-8AF5-DD1DA204EA4A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.40","matchCriteriaId":"69315BCC-36D2-45CD-84F8-381EDF8E38F3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.4.5","matchCriteriaId":"923F6AEA-C2EF-4B08-B038-69A18F3D41F8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*","matchCriteriaId":"0B3E6E4D-E24E-4630-B00C-8C9901C597B0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/4369016497319a9635702da010d02af1ebb1849d","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/a957ac8e0b5ffb5797382a6adbafd005a5f72851","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/b11a9b4f28cb6ff69ef7e69809e5f7fffeac9030","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/d26299f50f5ea8f0aeb5d49e659c31f64233c816","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}