CVE-2025-22057

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However in case CONFIG_DST_CACHE is enabled and OvS+tunnels\nare used, this fix is incomplete as the same issue will be seen for\ncached dsts:\n\n Unable to handle kernel paging request at virtual address ffff5aabf6b5c000\n Call trace:\n percpu_counter_add_batch+0x3c/0x160 (P)\n dst_release+0xec/0x108\n dst_cache_destroy+0x68/0xd8\n dst_destroy+0x13c/0x168\n dst_destroy_rcu+0x1c/0xb0\n rcu_do_batch+0x18c/0x7d0\n rcu_core+0x174/0x378\n rcu_core_si+0x18/0x30\n\nFix this by invalidating the cache, and thus decrementing cached dst\ncounters, in dst_release too."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - Triggering requires local configuration of a metadata tunnel (tc `action tunnel_key set`, nft tunnel object, or OVS set_tunnel) via netlink plus a network-namespace dismantle; received packets alone cannot populate the dst_cache since RX-allocated tun_dsts have no cache initialized.\nAC:L - The attacker controls both sides \u2014 they configure the cached tunnel dst and they trigger the netns teardown that frees the percpu counter \u2014 and `cleanup_net()` performs no rcu_barrier() between device-op exit (which queues dst_destroy_rcu) and ip6_route_net_exit(), so the window is wide and the whole sequence can be repeated in a loop until it lands.\nPR:L - tc actions, nftables tunnel objects, tunnel device creation and netns teardown are all gated by `netlink_net_capable(skb, CAP_NET_ADMIN)`, which checks against `sock_net(sk)->user_ns`, so an unprivileged local user obtains everything needed via `unshare -Urn`.\nUI:N - The attacker performs the entire sequence \u2014 namespace creation, tunnel/action setup, traffic generation, and namespace destruction \u2014 with no action by any other user.\nS:U - The use-after-free corrupts kernel memory within the same kernel security authority; no VM, IOMMU, or hypervisor boundary is crossed.\nC:H - `percpu_counter_add_batch()` reads freed percpu memory through the dangling `fbc->counters` pointer and folds that value into a kernel counter; per use-after-free scoring this yields potential disclosure of reclaimed kernel heap contents.\nI:H - The stale `this_cpu_write()` performs a use-after-free write into a freed percpu chunk that other percpu allocations can reclaim, corrupting unrelated kernel state (e.g. counters/refcounts) in an attacker-groomable way.\nA:H - The reported failure is a fatal kernel paging fault in `percpu_counter_add_batch()` from an RCU softirq callback, which panics or oopses the machine in unrecoverable context."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/core/dst.c"], "versions": [{"version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "973bb0bc6240b55e313248ef3c6aa551ab7bb735", "status": "affected", "versionType": "git"}, {"version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "ccc331fd5bcae131d2627d5ef099d4a1f6540aea", "status": "affected", "versionType": "git"}, {"version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "92a5c18513117be69bc00419dd1724c1940f8fcd", "status": "affected", "versionType": "git"}, {"version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "836415a8405c9665ae55352fc5ba865c242f5e4f", "status": "affected", "versionType": "git"}, {"version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "e833e7ad64eb2f63867f65303be49ca30ee8819e", "status": "affected", "versionType": "git"}, {"version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "3a0a3ff6593d670af2451ec363ccb7b18aec0c0a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/core/dst.c"], "versions": [{"version": "4.6", "status": "affected"}, {"version": "0", "lessThan": "4.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.87", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.23", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.13.11", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.2", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15", "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": "4.6", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "6.6.87"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "6.12.23"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "6.13.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "6.14.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.6", "versionEndExcluding": "6.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/973bb0bc6240b55e313248ef3c6aa551ab7bb735"}, {"url": "https://git.kernel.org/stable/c/ccc331fd5bcae131d2627d5ef099d4a1f6540aea"}, {"url": "https://git.kernel.org/stable/c/92a5c18513117be69bc00419dd1724c1940f8fcd"}, {"url": "https://git.kernel.org/stable/c/836415a8405c9665ae55352fc5ba865c242f5e4f"}, {"url": "https://git.kernel.org/stable/c/e833e7ad64eb2f63867f65303be49ca30ee8819e"}, {"url": "https://git.kernel.org/stable/c/3a0a3ff6593d670af2451ec363ccb7b18aec0c0a"}], "title": "net: decrease cached dst counters in dst_release", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-22057", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T21:44:18.222733Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T21:51:57.256Z"}}]}}

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no VM, IOMMU, or hypervisor boundary is crossed.\nC:H - `percpu_counter_add_batch()` reads freed percpu memory through the dangling `fbc->counters` pointer and folds that value into a kernel counter; per use-after-free scoring this yields potential disclosure of reclaimed kernel heap contents.\nI:H - The stale `this_cpu_write()` performs a use-after-free write into a freed percpu chunk that other percpu allocations can reclaim, corrupting unrelated kernel state (e.g. counters/refcounts) in an attacker-groomable way.\nA:H - The reported failure is a fatal kernel paging fault in `percpu_counter_add_batch()` from an RCU softirq callback, which panics or oopses the machine in unrecoverable context."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "973bb0bc6240b55e313248ef3c6aa551ab7bb735", "versionType": "git"}, {"status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "ccc331fd5bcae131d2627d5ef099d4a1f6540aea", "versionType": "git"}, {"status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "92a5c18513117be69bc00419dd1724c1940f8fcd", "versionType": "git"}, {"status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "836415a8405c9665ae55352fc5ba865c242f5e4f", "versionType": "git"}, {"status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "e833e7ad64eb2f63867f65303be49ca30ee8819e", "versionType": "git"}, {"status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "lessThan": "3a0a3ff6593d670af2451ec363ccb7b18aec0c0a", "versionType": "git"}], "programFiles": ["net/core/dst.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.6"}, {"status": "unaffected", "version": "0", "lessThan": "4.6", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.191", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.87", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.23", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.13.11", "versionType": "semver", "lessThanOrEqual": "6.13.*"}, {"status": "unaffected", "version": "6.14.2", "versionType": "semver", "lessThanOrEqual": "6.14.*"}, {"status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/core/dst.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/973bb0bc6240b55e313248ef3c6aa551ab7bb735"}, {"url": "https://git.kernel.org/stable/c/ccc331fd5bcae131d2627d5ef099d4a1f6540aea"}, {"url": "https://git.kernel.org/stable/c/92a5c18513117be69bc00419dd1724c1940f8fcd"}, {"url": "https://git.kernel.org/stable/c/836415a8405c9665ae55352fc5ba865c242f5e4f"}, {"url": "https://git.kernel.org/stable/c/e833e7ad64eb2f63867f65303be49ca30ee8819e"}, {"url": "https://git.kernel.org/stable/c/3a0a3ff6593d670af2451ec363ccb7b18aec0c0a"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: decrease cached dst counters in dst_release\n\nUpstream fix ac888d58869b (\"net: do not delay dst_entries_add() in\ndst_release()\") moved decrementing the dst count from dst_destroy to\ndst_release to avoid accessing already freed data in case of netns\ndismantle. However in case CONFIG_DST_CACHE is enabled and OvS+tunnels\nare used, this fix is incomplete as the same issue will be seen for\ncached dsts:\n\n Unable to handle kernel paging request at virtual address ffff5aabf6b5c000\n Call trace:\n percpu_counter_add_batch+0x3c/0x160 (P)\n dst_release+0xec/0x108\n dst_cache_destroy+0x68/0xd8\n dst_destroy+0x13c/0x168\n dst_destroy_rcu+0x1c/0xb0\n rcu_do_batch+0x18c/0x7d0\n rcu_core+0x174/0x378\n rcu_core_si+0x18/0x30\n\nFix this by invalidating the cache, and thus decrementing cached dst\ncounters, in dst_release too."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.191", "versionStartIncluding": "4.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.87", "versionStartIncluding": "4.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.23", "versionStartIncluding": "4.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.13.11", "versionStartIncluding": "4.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.14.2", "versionStartIncluding": "4.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.15", "versionStartIncluding": "4.6"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:21:11.424Z"}}}, "cveMetadata": {"cveId": "CVE-2025-22057", "state": "PUBLISHED", "dateUpdated": "2026-10-30T12:21:11.424Z", "dateReserved": "2024-12-29T08:45:45.812Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-04-16T14:12:14.234Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/core/dst.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "973bb0bc6240b55e313248ef3c6aa551ab7bb735", "status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "versionType": "git"}, {"lessThan": "ccc331fd5bcae131d2627d5ef099d4a1f6540aea", "status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "versionType": "git"}, {"lessThan": "92a5c18513117be69bc00419dd1724c1940f8fcd", "status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "versionType": "git"}, {"lessThan": "836415a8405c9665ae55352fc5ba865c242f5e4f", "status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "versionType": "git"}, {"lessThan": "e833e7ad64eb2f63867f65303be49ca30ee8819e", "status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "versionType": "git"}, {"lessThan": "3a0a3ff6593d670af2451ec363ccb7b18aec0c0a", "status": "affected", "version": "d71785ffc7e7cae3fbdc4ea8a9d05b7a1c59f7b8", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/core/dst.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.6"}, {"lessThan": "4.6", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.87", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.23", "versionType": "semver"}, {"lessThanOrEqual": "6.13.*", "status": "unaffected", "version": "6.13.11", "versionType": "semver"}, {"lessThanOrEqual": "6.14.*", "status": "unaffected", "version": "6.14.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "02160F02-300D-4D57-B6FF-E97AD0F5CC38", "versionEndExcluding": "6.6.87", "versionStartIncluding": "4.6", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "26CAB76D-F00F-43CE-BEAD-7097F8FB1D6C", "versionEndExcluding": "6.12.23", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E7E864B0-8C00-4679-BA55-659B4C9C3AD3", "versionEndExcluding": "6.13.11", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FADAE5D8-4808-442C-B218-77B2CE8780A0", "versionEndExcluding": "6.14.2", "versionStartIncluding": "6.14", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: decrease cached dst counters in dst_release\n\nUpstream fix ac888d58869b (\"net: do not delay dst_entries_add() in\ndst_release()\") moved decrementing the dst count from dst_destroy to\ndst_release to avoid accessing already freed data in case of netns\ndismantle. However in case CONFIG_DST_CACHE is enabled and OvS+tunnels\nare used, this fix is incomplete as the same issue will be seen for\ncached dsts:\n\n Unable to handle kernel paging request at virtual address ffff5aabf6b5c000\n Call trace:\n percpu_counter_add_batch+0x3c/0x160 (P)\n dst_release+0xec/0x108\n dst_cache_destroy+0x68/0xd8\n dst_destroy+0x13c/0x168\n dst_destroy_rcu+0x1c/0xb0\n rcu_do_batch+0x18c/0x7d0\n rcu_core+0x174/0x378\n rcu_core_si+0x18/0x30\n\nFix this by invalidating the cache, and thus decrementing cached dst\ncounters, in dst_release too."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: disminuir los contadores dst en cach\u00e9 en dst_release La correcci\u00f3n ascendente ac888d58869b (\"net: no retrasar dst_entries_add() en dst_release()\") se movi\u00f3 y disminuy\u00f3 el recuento dst de dst_destroy a dst_release para evitar acceder a datos ya liberados en caso de desmantelamiento de netns. Sin embargo, en caso de que CONFIG_DST_CACHE est\u00e9 habilitado y se usen t\u00faneles OvS+, esta correcci\u00f3n est\u00e1 incompleta ya que se ver\u00e1 el mismo problema para los dst en cach\u00e9: No se puede manejar la solicitud de paginaci\u00f3n del n\u00facleo en la direcci\u00f3n virtual ffff5aabf6b5c000 Rastreo de llamadas: percpu_counter_add_batch+0x3c/0x160 (P) dst_release+0xec/0x108 dst_cache_destroy+0x68/0xd8 dst_destroy+0x13c/0x168 dst_destroy_rcu+0x1c/0xb0 rcu_do_batch+0x18c/0x7d0 rcu_core+0x174/0x378 rcu_core_si+0x18/0x30 Corrija esto invalidando el cach\u00e9 y, por lo tanto, disminuyendo los contadores dst en cach\u00e9. dst_release tambi\u00e9n."}], "id": "CVE-2025-22057", "lastModified": "2026-10-30T13:17:56.273", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-22057", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-15T21:44:18.222733Z", "version": "2.0.3"}}]}, "published": "2025-04-16T15:15:59.183", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3a0a3ff6593d670af2451ec363ccb7b18aec0c0a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/836415a8405c9665ae55352fc5ba865c242f5e4f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/92a5c18513117be69bc00419dd1724c1940f8fcd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/973bb0bc6240b55e313248ef3c6aa551ab7bb735"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ccc331fd5bcae131d2627d5ef099d4a1f6540aea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e833e7ad64eb2f63867f65303be49ca30ee8819e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: decrease cached dst counters in dst_release", "id": "2360270", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360270"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: decrease cached dst counters in dst_release\nUpstream fix ac888d58869b (\"net: do not delay dst_entries_add() in\ndst_release()\") moved decrementing the dst count from dst_destroy to\ndst_release to avoid accessing already freed data in case of netns\ndismantle. However in case CONFIG_DST_CACHE is enabled and OvS+tunnels\nare used, this fix is incomplete as the same issue will be seen for\ncached dsts:\nUnable to handle kernel paging request at virtual address ffff5aabf6b5c000\nCall trace:\npercpu_counter_add_batch+0x3c/0x160 (P)\ndst_release+0xec/0x108\ndst_cache_destroy+0x68/0xd8\ndst_destroy+0x13c/0x168\ndst_destroy_rcu+0x1c/0xb0\nrcu_do_batch+0x18c/0x7d0\nrcu_core+0x174/0x378\nrcu_core_si+0x18/0x30\nFix this by invalidating the cache, and thus decrementing cached dst\ncounters, in dst_release too."], "name": "CVE-2025-22057", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-04-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-22057\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-22057\nhttps://lore.kernel.org/linux-cve-announce/2025041605-CVE-2025-22057-fb12@gregkh/T"], "threat_severity": "Moderate"}

{}