2 lines
10 KiB
JSON
2 lines
10 KiB
JSON
{"affected":[{"affectedData":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/can/j1939/transport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6950df42a03c9ac9290503ced3f371199cb68fa9","status":"affected","version":"7eef18c0479ba5d9f54fba30cd77c233ebca3eb1","versionType":"git"},{"lessThan":"b6d44072117bba057d50f7a2f96e5d070c65926d","status":"affected","version":"55dd22c5d029423f513fd849e633adf0e9c10d0c","versionType":"git"},{"lessThan":"9ab896775f98ff54b68512f345eed178bf961084","status":"affected","version":"0c71437dd50dd687c15d8ca80b3b68f10bb21d63","versionType":"git"},{"lessThan":"1740a1e45eee65099a92fb502e1e67e63aad277d","status":"affected","version":"0c71437dd50dd687c15d8ca80b3b68f10bb21d63","versionType":"git"},{"lessThan":"d0553680f94c49bbe0e39eb50d033ba563b4212d","status":"affected","version":"0c71437dd50dd687c15d8ca80b3b68f10bb21d63","versionType":"git"},{"status":"affected","version":"5e1fc537c1be332aef9621ca9146aeb3ba59522f","versionType":"git"},{"lessThan":"5.4.232","status":"affected","version":"5.4.138","versionType":"semver"},{"lessThan":"5.10.168","status":"affected","version":"5.10.56","versionType":"semver"},{"lessThan":"5.14","status":"affected","version":"5.13.8","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/can/j1939/transport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.14"},{"lessThan":"5.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.232","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.168","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.93","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.2","versionType":"original_commit_for_fix"}]}],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"13158387-374E-4D12-8884-50DEBF66EF29","versionEndExcluding":"5.4.232","versionStartIncluding":"5.4.138","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"2DC5F90C-A016-45D7-AD67-70DB2104452B","versionEndExcluding":"5.10.168","versionStartIncluding":"5.10.56","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"36EE71C6-4B88-4A86-A5C2-2ED3CE3D73C1","versionEndExcluding":"5.14","versionStartIncluding":"5.13.8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"9076B4DA-3809-4702-8D7A-4B621B7AC27D","versionEndExcluding":"5.15.93","versionStartIncluding":"5.14.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","matchCriteriaId":"535D03F4-DA02-49FE-934E-668827E6407B","versionEndExcluding":"6.1.11","versionStartIncluding":"5.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:5.14:-:*:*:*:*:*:*","matchCriteriaId":"6A05198E-F8FA-4517-8D0E-8C95066AED38","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:5.14:rc4:*:*:*:*:*:*","matchCriteriaId":"D1DA0AF6-02F4-47C7-A318-8C006ED0C665","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:5.14:rc5:*:*:*:*:*:*","matchCriteriaId":"49DD30B1-8C99-4C38-A66B-CAB3827BEE8A","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:5.14:rc6:*:*:*:*:*:*","matchCriteriaId":"15013998-4AF0-4CDC-AB13-829ECD8A8E66","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:5.14:rc7:*:*:*:*:*:*","matchCriteriaId":"376A25CF-C05B-48F1-99B1-8FB0314A8E06","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*","matchCriteriaId":"FF501633-2F44-4913-A8EE-B021929F49F6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*","matchCriteriaId":"2BDA597B-CAC1-4DF0-86F0-42E142C654E9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*","matchCriteriaId":"725C78C9-12CE-406F-ABE8-0813A01D66E8","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*","matchCriteriaId":"A127C155-689C-4F67-B146-44A57F4BFD85","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*","matchCriteriaId":"D34127CC-68F5-4703-A5F6-5006F803E4AE","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:6.2:rc6:*:*:*:*:*:*","matchCriteriaId":"4AB8D555-648E-4F2F-98BD-3E7F45BD12A8","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: fix errant WARN_ON_ONCE in j1939_session_deactivate\n\nThe conclusion \"j1939_session_deactivate() should be called with a\nsession ref-count of at least 2\" is incorrect. In some concurrent\nscenarios, j1939_session_deactivate can be called with the session\nref-count less than 2. But there is not any problem because it\nwill check the session active state before session putting in\nj1939_session_deactivate_locked().\n\nHere is the concurrent scenario of the problem reported by syzbot\nand my reproduction log.\n\n cpu0 cpu1\n j1939_xtp_rx_eoma\nj1939_xtp_rx_abort_one\n j1939_session_get_by_addr [kref == 2]\nj1939_session_get_by_addr [kref == 3]\nj1939_session_deactivate [kref == 2]\nj1939_session_put [kref == 1]\n\t\t\t\tj1939_session_completed\n\t\t\t\tj1939_session_deactivate\n\t\t\t\tWARN_ON_ONCE(kref < 2)\n\n=====================================================\nWARNING: CPU: 1 PID: 21 at net/can/j1939/transport.c:1088 j1939_session_deactivate+0x5f/0x70\nCPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 5.14.0-rc7+ #32\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1 04/01/2014\nRIP: 0010:j1939_session_deactivate+0x5f/0x70\nCall Trace:\n j1939_session_deactivate_activate_next+0x11/0x28\n j1939_xtp_rx_eoma+0x12a/0x180\n j1939_tp_recv+0x4a2/0x510\n j1939_can_recv+0x226/0x380\n can_rcv_filter+0xf8/0x220\n can_receive+0x102/0x220\n ? process_backlog+0xf0/0x2c0\n can_rcv+0x53/0xf0\n __netif_receive_skb_one_core+0x67/0x90\n ? process_backlog+0x97/0x2c0\n __netif_receive_skb+0x22/0x80"},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: j1939: corrección del error WARN_ON_ONCE en j1939_session_deactivate. La conclusión \"j1939_session_deactivate() debe llamarse con un recuento de referencias de sesión de al menos 2\" es incorrecta. En algunos escenarios concurrentes, se puede llamar a j1939_session_deactivate con un recuento de referencias de sesión inferior a 2. Sin embargo, no hay problema, ya que comprueba el estado activo de la sesión antes de que se active j1939_session_deactivate_locked(). A continuación, se muestra el escenario concurrente del problema reportado por syzbot y mi registro de reproducción. cpu0 cpu1 j1939_xtp_rx_eoma j1939_xtp_rx_abort_one j1939_session_get_by_addr [kref == 2] j1939_session_get_by_addr [kref == 3] j1939_session_deactivate [kref == 2] j1939_session_put [kref == 1] j1939_session_completed j1939_session_deactivate WARN_ON_ONCE(kref < 2) ======================================================= ADVERTENCIA: CPU: 1 PID: 21 at net/can/j1939/transport.c:1088 j1939_session_deactivate+0x5f/0x70 CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 5.14.0-rc7+ #32 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1 04/01/2014 RIP: 0010:j1939_session_deactivate+0x5f/0x70 Call Trace: j1939_session_deactivate_activate_next+0x11/0x28 j1939_xtp_rx_eoma+0x12a/0x180 j1939_tp_recv+0x4a2/0x510 j1939_can_recv+0x226/0x380 can_rcv_filter+0xf8/0x220 can_receive+0x102/0x220 ? process_backlog+0xf0/0x2c0 can_rcv+0x53/0xf0 __netif_receive_skb_one_core+0x67/0x90 ? process_backlog+0x97/0x2c0 __netif_receive_skb+0x22/0x80 "}],"id":"CVE-2021-4454","lastModified":"2026-10-15T22:17:22.303","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"exploitabilityScore":3.9,"impactScore":3.6,"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-2021-4454","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-10-15T21:02:43.206452Z","version":"2.0.3"}}]},"published":"2025-03-27T17:15:35.820","references":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"url":"https://git.kernel.org/stable/c/1740a1e45eee65099a92fb502e1e67e63aad277d"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"url":"https://git.kernel.org/stable/c/6950df42a03c9ac9290503ced3f371199cb68fa9"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"url":"https://git.kernel.org/stable/c/9ab896775f98ff54b68512f345eed178bf961084"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"url":"https://git.kernel.org/stable/c/b6d44072117bba057d50f7a2f96e5d070c65926d"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"url":"https://git.kernel.org/stable/c/d0553680f94c49bbe0e39eb50d033ba563b4212d"}],"sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"NVD-CWE-noinfo"}],"source":"nvd@nist.gov","type":"Primary"}]}
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