{"id":"CVE-2026-31595","state":"PUBLISHED","title":"PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup\n\nDisable the delayed work before clearing BAR mappings and doorbells to\navoid running the handler after resources have been torn down.\n\n  Unable to handle kernel paging request at virtual address ffff800083f46004\n  [...]\n  Internal error: Oops: 0000000096000007 [#1]  SMP\n  [...]\n  Call trace:\n   epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P)\n   process_one_work+0x154/0x3b0\n   worker_thread+0x2c8/0x400\n   kthread+0x148/0x210\n   ret_from_fork+0x10/0x20","publishedAt":"2026-04-24T14:42:21.355Z","updatedAt":"2026-06-14T17:42:36.054Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"b2eb405bbced3a6e772545e1b74dbde37cee1f8f","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"ceb73484e7204f661f770069ecdf35f6e941879c","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"6773cc24c004930903a57761132c1e7728907f8f","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"9921cce25bfe4021f6e55ca995351eb967165297","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"5999067140c67530a6cb6f41a8471596e60452cb","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"fbb6c353fa2fb5f5f990eda034a1074b0356127e","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"d799984233a50abd2667a7d17a9a710a3f10ebe2","versionType":"git"},{"version":"e2b6ef72b7aea9d7d480d2df499bcd1c93247abb","status":"affected","versionType":"git"},{"version":"5.15.153","status":"affected","lessThan":"5.16","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/endpoint/functions/pci-epf-vntb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.136","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.83","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.24","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.14","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0.1","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/endpoint/functions/pci-epf-vntb.c"]}],"references":["https://git.kernel.org/stable/c/b2eb405bbced3a6e772545e1b74dbde37cee1f8f","https://git.kernel.org/stable/c/ceb73484e7204f661f770069ecdf35f6e941879c","https://git.kernel.org/stable/c/6773cc24c004930903a57761132c1e7728907f8f","https://git.kernel.org/stable/c/9921cce25bfe4021f6e55ca995351eb967165297","https://git.kernel.org/stable/c/5999067140c67530a6cb6f41a8471596e60452cb","https://git.kernel.org/stable/c/fbb6c353fa2fb5f5f990eda034a1074b0356127e","https://git.kernel.org/stable/c/d799984233a50abd2667a7d17a9a710a3f10ebe2"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/31xxx/CVE-2026-31595.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31595","state":"PUBLISHED","datePublished":"2026-04-24T14:42:21.355Z","dateUpdated":"2026-06-14T17:42:36.054Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-03-09T15:48:24.121Z"},"containers":{"cna":{"title":"PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup\n\nDisable the delayed work before clearing BAR mappings and doorbells to\navoid running the handler after resources have been torn down.\n\n  Unable to handle kernel paging request at virtual address ffff800083f46004\n  [...]\n  Internal error: Oops: 0000000096000007 [#1]  SMP\n  [...]\n  Call trace:\n   epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P)\n   process_one_work+0x154/0x3b0\n   worker_thread+0x2c8/0x400\n   kthread+0x148/0x210\n   ret_from_fork+0x10/0x20"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"b2eb405bbced3a6e772545e1b74dbde37cee1f8f","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"ceb73484e7204f661f770069ecdf35f6e941879c","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"6773cc24c004930903a57761132c1e7728907f8f","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"9921cce25bfe4021f6e55ca995351eb967165297","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"5999067140c67530a6cb6f41a8471596e60452cb","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"fbb6c353fa2fb5f5f990eda034a1074b0356127e","versionType":"git"},{"version":"e35f56bb03304abc92c928b641af41ca372966bb","status":"affected","lessThan":"d799984233a50abd2667a7d17a9a710a3f10ebe2","versionType":"git"},{"version":"e2b6ef72b7aea9d7d480d2df499bcd1c93247abb","status":"affected","versionType":"git"},{"version":"5.15.153","status":"affected","lessThan":"5.16","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/endpoint/functions/pci-epf-vntb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.136","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.83","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.24","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.14","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0.1","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/endpoint/functions/pci-epf-vntb.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b2eb405bbced3a6e772545e1b74dbde37cee1f8f"},{"url":"https://git.kernel.org/stable/c/ceb73484e7204f661f770069ecdf35f6e941879c"},{"url":"https://git.kernel.org/stable/c/6773cc24c004930903a57761132c1e7728907f8f"},{"url":"https://git.kernel.org/stable/c/9921cce25bfe4021f6e55ca995351eb967165297"},{"url":"https://git.kernel.org/stable/c/5999067140c67530a6cb6f41a8471596e60452cb"},{"url":"https://git.kernel.org/stable/c/fbb6c353fa2fb5f5f990eda034a1074b0356127e"},{"url":"https://git.kernel.org/stable/c/d799984233a50abd2667a7d17a9a710a3f10ebe2"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-14T17:42:36.054Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.136"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12.83"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.18.24"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.19.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.0.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.153"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}