{"id":"CVE-2025-21981","state":"PUBLISHED","title":"ice: fix memory leak in aRFS after reset","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix memory leak in aRFS after reset\n\nFix aRFS (accelerated Receive Flow Steering) structures memory leak by\nadding a checker to verify if aRFS memory is already allocated while\nconfiguring VSI. aRFS objects are allocated in two cases:\n- as part of VSI initialization (at probe), and\n- as part of reset handling\n\nHowever, VSI reconfiguration executed during reset involves memory\nallocation one more time, without prior releasing already allocated\nresources. This led to the memory leak with the following signature:\n\n[root@os-delivery ~]# cat /sys/kernel/debug/kmemleak\nunreferenced object 0xff3c1ca7252e6000 (size 8192):\n  comm \"kworker/0:0\", pid 8, jiffies 4296833052\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 (crc 0):\n    [<ffffffff991ec485>] __kmalloc_cache_noprof+0x275/0x340\n    [<ffffffffc0a6e06a>] ice_init_arfs+0x3a/0xe0 [ice]\n    [<ffffffffc09f1027>] ice_vsi_cfg_def+0x607/0x850 [ice]\n    [<ffffffffc09f244b>] ice_vsi_setup+0x5b/0x130 [ice]\n    [<ffffffffc09c2131>] ice_init+0x1c1/0x460 [ice]\n    [<ffffffffc09c64af>] ice_probe+0x2af/0x520 [ice]\n    [<ffffffff994fbcd3>] local_pci_probe+0x43/0xa0\n    [<ffffffff98f07103>] work_for_cpu_fn+0x13/0x20\n    [<ffffffff98f0b6d9>] process_one_work+0x179/0x390\n    [<ffffffff98f0c1e9>] worker_thread+0x239/0x340\n    [<ffffffff98f14abc>] kthread+0xcc/0x100\n    [<ffffffff98e45a6d>] ret_from_fork+0x2d/0x50\n    [<ffffffff98e083ba>] ret_from_fork_asm+0x1a/0x30\n    ...","publishedAt":"2025-04-01T15:47:09.744Z","updatedAt":"2026-05-11T21:10:19.792Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"ef2bc94059836a115430a6ad9d2838b0b34dc8f5","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"e6902101f34f098af59b0d1d8cf90c4124c02c6a","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"fcbacc47d16306c87ad1b820b7a575f6e9eae58b","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"5d30d256661fc11b6e73fac6c3783a702e1006a3","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"3b27e6e10a32589fcd293b8933ab6de9387a460e","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"78f3d64b30210c0e521c59357431aca14024cb79","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"23d97f18901ef5e4e264e3b1777fe65c760186b5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/ice/ice_arfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.8","versionType":"semver"},{"version":"5.10.236","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.180","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.132","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.84","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.20","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.8","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/ice/ice_arfs.c"]}],"references":["https://git.kernel.org/stable/c/ef2bc94059836a115430a6ad9d2838b0b34dc8f5","https://git.kernel.org/stable/c/e6902101f34f098af59b0d1d8cf90c4124c02c6a","https://git.kernel.org/stable/c/fcbacc47d16306c87ad1b820b7a575f6e9eae58b","https://git.kernel.org/stable/c/5d30d256661fc11b6e73fac6c3783a702e1006a3","https://git.kernel.org/stable/c/3b27e6e10a32589fcd293b8933ab6de9387a460e","https://git.kernel.org/stable/c/78f3d64b30210c0e521c59357431aca14024cb79","https://git.kernel.org/stable/c/23d97f18901ef5e4e264e3b1777fe65c760186b5","https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html","https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/21xxx/CVE-2025-21981.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21981","state":"PUBLISHED","datePublished":"2025-04-01T15:47:09.744Z","dateUpdated":"2026-05-11T21:10:19.792Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-29T08:45:45.799Z"},"containers":{"cna":{"title":"ice: fix memory leak in aRFS after reset","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix memory leak in aRFS after reset\n\nFix aRFS (accelerated Receive Flow Steering) structures memory leak by\nadding a checker to verify if aRFS memory is already allocated while\nconfiguring VSI. aRFS objects are allocated in two cases:\n- as part of VSI initialization (at probe), and\n- as part of reset handling\n\nHowever, VSI reconfiguration executed during reset involves memory\nallocation one more time, without prior releasing already allocated\nresources. This led to the memory leak with the following signature:\n\n[root@os-delivery ~]# cat /sys/kernel/debug/kmemleak\nunreferenced object 0xff3c1ca7252e6000 (size 8192):\n  comm \"kworker/0:0\", pid 8, jiffies 4296833052\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 (crc 0):\n    [<ffffffff991ec485>] __kmalloc_cache_noprof+0x275/0x340\n    [<ffffffffc0a6e06a>] ice_init_arfs+0x3a/0xe0 [ice]\n    [<ffffffffc09f1027>] ice_vsi_cfg_def+0x607/0x850 [ice]\n    [<ffffffffc09f244b>] ice_vsi_setup+0x5b/0x130 [ice]\n    [<ffffffffc09c2131>] ice_init+0x1c1/0x460 [ice]\n    [<ffffffffc09c64af>] ice_probe+0x2af/0x520 [ice]\n    [<ffffffff994fbcd3>] local_pci_probe+0x43/0xa0\n    [<ffffffff98f07103>] work_for_cpu_fn+0x13/0x20\n    [<ffffffff98f0b6d9>] process_one_work+0x179/0x390\n    [<ffffffff98f0c1e9>] worker_thread+0x239/0x340\n    [<ffffffff98f14abc>] kthread+0xcc/0x100\n    [<ffffffff98e45a6d>] ret_from_fork+0x2d/0x50\n    [<ffffffff98e083ba>] ret_from_fork_asm+0x1a/0x30\n    ..."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"ef2bc94059836a115430a6ad9d2838b0b34dc8f5","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"e6902101f34f098af59b0d1d8cf90c4124c02c6a","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"fcbacc47d16306c87ad1b820b7a575f6e9eae58b","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"5d30d256661fc11b6e73fac6c3783a702e1006a3","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"3b27e6e10a32589fcd293b8933ab6de9387a460e","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"78f3d64b30210c0e521c59357431aca14024cb79","versionType":"git"},{"version":"28bf26724fdb0e02267d19e280d6717ee810a10d","status":"affected","lessThan":"23d97f18901ef5e4e264e3b1777fe65c760186b5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/ice/ice_arfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.8","versionType":"semver"},{"version":"5.10.236","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.180","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.132","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.84","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.20","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.8","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/ice/ice_arfs.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ef2bc94059836a115430a6ad9d2838b0b34dc8f5"},{"url":"https://git.kernel.org/stable/c/e6902101f34f098af59b0d1d8cf90c4124c02c6a"},{"url":"https://git.kernel.org/stable/c/fcbacc47d16306c87ad1b820b7a575f6e9eae58b"},{"url":"https://git.kernel.org/stable/c/5d30d256661fc11b6e73fac6c3783a702e1006a3"},{"url":"https://git.kernel.org/stable/c/3b27e6e10a32589fcd293b8933ab6de9387a460e"},{"url":"https://git.kernel.org/stable/c/78f3d64b30210c0e521c59357431aca14024cb79"},{"url":"https://git.kernel.org/stable/c/23d97f18901ef5e4e264e3b1777fe65c760186b5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:10:19.792Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.10.236"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.15.180"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.1.132"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.6.84"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.12.20"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.13.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.14"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-10-01T17:14:51.241580Z","id":"CVE-2025-21981","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-401","type":"CWE","lang":"en","description":"CWE-401 Missing Release of Memory after Effective Lifetime"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T17:14:55.624Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T19:40:24.017Z"}}]}}}