{"id":"CVE-2026-53177","state":"PUBLISHED","title":"bnxt_en: Fix NULL pointer dereference","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix NULL pointer dereference\n\nPCIe errors detected by a Root Port or Downstream Port cause error\nrecovery services to run on all subordinate devices regardless of\nadministrative state.\n\nThe .error_detected() callback, bnxt_io_error_detected(), disables\nand synchronizes IRQs via bnxt_disable_int_sync(), which calls\nbnxt_cp_num_to_irq_num() to map completion rings to IRQs using\nbp->bnapi.\n\nSince bp->bnapi is allocated on NIC open and freed on NIC close, PCIe\nerror recovery on a closed NIC can dereference a NULL pointer.\n\nCheck if bp->bnapi is NULL before disabling and synchronizing IRQs.","publishedAt":"2026-06-25T08:38:53.347Z","updatedAt":"2026-10-15T01:22:33.431Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e5811b8c09df9bc80eabc95339fceded23f16289","status":"affected","lessThan":"1449177b87f768353909e930a99b902675119b2b","versionType":"git"},{"version":"e5811b8c09df9bc80eabc95339fceded23f16289","status":"affected","lessThan":"964b1c3eb71afe58bb61c8b984164447e000ae8a","versionType":"git"},{"version":"e5811b8c09df9bc80eabc95339fceded23f16289","status":"affected","lessThan":"59c5a3e69c7630a811565937e64be70b08436761","versionType":"git"},{"version":"e5811b8c09df9bc80eabc95339fceded23f16289","status":"affected","lessThan":"1a418ad0e5e525d1d117dd1601681f75455af320","versionType":"git"},{"version":"e5811b8c09df9bc80eabc95339fceded23f16289","status":"affected","lessThan":"08e57d014ea19f303d5d57a849beb846f37788b7","versionType":"git"},{"version":"e5811b8c09df9bc80eabc95339fceded23f16289","status":"affected","lessThan":"3884976f87448e269908ae61bd5d62d54ce9c0c7","versionType":"git"},{"version":"e5811b8c09df9bc80eabc95339fceded23f16289","status":"affected","lessThan":"580844a9683afe7974856dd5b7886447435b3474","versionType":"git"},{"version":"e5811b8c09df9bc80eabc95339fceded23f16289","status":"affected","lessThan":"d930276f2cddd0b7294cac7a8fe7b877f6d9e08d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/broadcom/bnxt/bnxt.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.17","versionType":"semver"},{"version":"5.10.260","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.210","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.176","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.143","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.94","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.36","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.13","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/net/ethernet/broadcom/bnxt/bnxt.c"]}],"references":["https://git.kernel.org/stable/c/1449177b87f768353909e930a99b902675119b2b","https://git.kernel.org/stable/c/964b1c3eb71afe58bb61c8b984164447e000ae8a","https://git.kernel.org/stable/c/59c5a3e69c7630a811565937e64be70b08436761","https://git.kernel.org/stable/c/1a418ad0e5e525d1d117dd1601681f75455af320","https://git.kernel.org/stable/c/08e57d014ea19f303d5d57a849beb846f37788b7","https://git.kernel.org/stable/c/3884976f87448e269908ae61bd5d62d54ce9c0c7","https://git.kernel.org/stable/c/580844a9683afe7974856dd5b7886447435b3474","https://git.kernel.org/stable/c/d930276f2cddd0b7294cac7a8fe7b877f6d9e08d","https://cert-portal.siemens.com/productcert/html/ssa-784472.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53177.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53177","state":"PUBLISHED","datePublished":"2026-06-25T08:38:53.347Z","dateUpdated":"2026-10-15T01:22:33.431Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.389Z"},"containers":{"cna":{"title":"bnxt_en: 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