{"id":"CVE-2025-39949","summary":"qed: Don't collect too many protection override GRC elements","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nqed: Don't collect too many protection override GRC elements\n\nIn the protection override dump path, the firmware can return far too\nmany GRC elements, resulting in attempting to write past the end of the\npreviously-kmalloc'ed dump buffer.\n\nThis will result in a kernel panic with reason:\n\n BUG: unable to handle kernel paging request at ADDRESS\n\nwhere \"ADDRESS\" is just past the end of the protection override dump\nbuffer. The start address of the buffer is:\n p_hwfn-\u003ecdev-\u003edbg_features[DBG_FEATURE_PROTECTION_OVERRIDE].dump_buf\nand the size of the buffer is buf_size in the same data structure.\n\nThe panic can be arrived at from either the qede Ethernet driver path:\n\n    [exception RIP: qed_grc_dump_addr_range+0x108]\n qed_protection_override_dump at ffffffffc02662ed [qed]\n qed_dbg_protection_override_dump at ffffffffc0267792 [qed]\n qed_dbg_feature at ffffffffc026aa8f [qed]\n qed_dbg_all_data at ffffffffc026b211 [qed]\n qed_fw_fatal_reporter_dump at ffffffffc027298a [qed]\n devlink_health_do_dump at ffffffff82497f61\n devlink_health_report at ffffffff8249cf29\n qed_report_fatal_error at ffffffffc0272baf [qed]\n qede_sp_task at ffffffffc045ed32 [qede]\n process_one_work at ffffffff81d19783\n\nor the qedf storage driver path:\n\n    [exception RIP: qed_grc_dump_addr_range+0x108]\n qed_protection_override_dump at ffffffffc068b2ed [qed]\n qed_dbg_protection_override_dump at ffffffffc068c792 [qed]\n qed_dbg_feature at ffffffffc068fa8f [qed]\n qed_dbg_all_data at ffffffffc0690211 [qed]\n qed_fw_fatal_reporter_dump at ffffffffc069798a [qed]\n devlink_health_do_dump at ffffffff8aa95e51\n devlink_health_report at ffffffff8aa9ae19\n qed_report_fatal_error at ffffffffc0697baf [qed]\n qed_hw_err_notify at ffffffffc06d32d7 [qed]\n qed_spq_post at ffffffffc06b1011 [qed]\n qed_fcoe_destroy_conn at ffffffffc06b2e91 [qed]\n qedf_cleanup_fcport at ffffffffc05e7597 [qedf]\n qedf_rport_event_handler at ffffffffc05e7bf7 [qedf]\n fc_rport_work at ffffffffc02da715 [libfc]\n process_one_work at ffffffff8a319663\n\nResolve this by clamping the firmware's return value to the maximum\nnumber of legal elements the firmware should return.","modified":"2026-04-16T04:35:59.251861477Z","published":"2025-10-04T07:31:10.164Z","related":["SUSE-SU-2025:21040-1","SUSE-SU-2025:21052-1","SUSE-SU-2025:21056-1","SUSE-SU-2025:21064-1","SUSE-SU-2025:21080-1","SUSE-SU-2025:21147-1","SUSE-SU-2025:21180-1","SUSE-SU-2025:4057-1","SUSE-SU-2025:4128-1","SUSE-SU-2025:4132-1","SUSE-SU-2025:4140-1","SUSE-SU-2025:4141-1","SUSE-SU-2025:4189-1","SUSE-SU-2025:4301-1","openSUSE-SU-2025:20091-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39949.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/25672c620421fa2105703a94a29a03487245e6d6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/56c0a2a9ddc2f5b5078c5fb0f81ab76bbc3d4c37"},{"type":"WEB","url":"https://git.kernel.org/stable/c/660b2a8f5a306a28c7efc1b4990ecc4912a68f87"},{"type":"WEB","url":"https://git.kernel.org/stable/c/70affe82e38fd3dc76b9c68b5a1989f11e7fa0f3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8141910869596b7a3a5d9b46107da2191d523f82"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e0e24571a7b2f8c8f06e25d3417253ebbdbc8d5c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ea53e6a47e148b490b1c652fc65d2de5a086df76"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39949.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-39949"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d52c89f120de849575f6b2e5948038f2be12ce6f"},{"fixed":"25672c620421fa2105703a94a29a03487245e6d6"},{"fixed":"e0e24571a7b2f8c8f06e25d3417253ebbdbc8d5c"},{"fixed":"8141910869596b7a3a5d9b46107da2191d523f82"},{"fixed":"ea53e6a47e148b490b1c652fc65d2de5a086df76"},{"fixed":"660b2a8f5a306a28c7efc1b4990ecc4912a68f87"},{"fixed":"70affe82e38fd3dc76b9c68b5a1989f11e7fa0f3"},{"fixed":"56c0a2a9ddc2f5b5078c5fb0f81ab76bbc3d4c37"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-39949.json"}}],"schema_version":"1.7.5"}