{"id":"CVE-2026-68131","revision":null,"records":[{"revision":"cae86b47838d48d89d7cf80145223576","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-68131","aliases":[],"title":"rbd: Reset positive result codes to zero in object map update path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrbd: Reset positive result codes to zero in object map update path\n\nIn a reply message to an RBD request, a positive result code indicates\na data payload, which is not allowed for writes. While\nrbd_osd_req_callback() already resets a positive result code for writes\nto zero, rbd_object_map_callback() does not. This allows a corrupted\nreply to an object map update to trigger the rbd_assert(*result < 0) in\n__rbd_obj_handle_request(). This happens, because\nrbd_object_map_callback() calls rbd_obj_handle_request() ->\n__rbd_obj_handle_request() and passes this positive result code. From\n__rbd_obj_handle_request(), rbd_obj_advance_write() is called, which\nleaves the positive result code unchanged and returns true. Therefore,\nthe if(done && *result) branch is executed in __rbd_obj_handle_request()\nand the assertion triggers.\n\nThis patch fixes the issue by adjusting the logic in the\nrbd_object_map_callback() path. A positive result code for an object map\nupdate is now reset to zero (similar to rbd_osd_req_callback()), and the\nmessage is subsequently handled the same way as if the result code was\nzero from the beginning. Additionally, a WARN_ON_ONCE() is added for\nthis case.","state":0,"publishedAt":"2026-08-10T11:58:54.155+00:00","modifiedAt":"2026-10-19T20:58:52.688+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/block/rbd.c\"\n ],\n \"versions\": [\n {\n \"version\": \"22e8bd51bb0469d1a524130a057f894ff632376a\",\n \"lessThan\": \"cf1167292f606deaddac35ec384eba48f08a68d2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"22e8bd51bb0469d1a524130a057f894ff632376a\",\n \"lessThan\": \"da926959bf791441ba06a80571708c3d0d3cc08f\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"22e8bd51bb0469d1a524130a057f894ff632376a\",\n \"lessThan\": \"6f33d9d539fb94e5a17589c2dfe271ff9bb64904\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"22e8bd51bb0469d1a524130a057f894ff632376a\",\n \"lessThan\": \"14995c4250f04b58bf6fc00e0e973a2e1b3cfb9b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"22e8bd51bb0469d1a524130a057f894ff632376a\",\n \"lessThan\": \"2419aa74081007dc4d14ff5640659052dfdfd69a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"22e8bd51bb0469d1a524130a057f894ff632376a\",\n \"lessThan\": \"34f2a2f32af570dfcc532ad70c080629ee1c32b0\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"22e8bd51bb0469d1a524130a057f894ff632376a\",\n \"lessThan\": \"b1a61366933224b3ad80975c4d01ac2cc6931ecf\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"22e8bd51bb0469d1a524130a057f894ff632376a\",\n \"lessThan\": \"a6c4250b81bd30beae94e1b7a4b26fa1193ad2e4\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/block/rbd.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.3\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.3\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.265\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.216\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.183\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.148\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.101\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.42\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1.6\",\n \"lessThanOrEqual\": \"7.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/cf1167292f606deaddac35ec384eba48f08a68d2","https://git.kernel.org/stable/c/da926959bf791441ba06a80571708c3d0d3cc08f","https://git.kernel.org/stable/c/6f33d9d539fb94e5a17589c2dfe271ff9bb64904","https://git.kernel.org/stable/c/14995c4250f04b58bf6fc00e0e973a2e1b3cfb9b","https://git.kernel.org/stable/c/2419aa74081007dc4d14ff5640659052dfdfd69a","https://git.kernel.org/stable/c/34f2a2f32af570dfcc532ad70c080629ee1c32b0","https://git.kernel.org/stable/c/b1a61366933224b3ad80975c4d01ac2cc6931ecf","https://git.kernel.org/stable/c/a6c4250b81bd30beae94e1b7a4b26fa1193ad2e4"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-68131","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-68131","identifiers":["CVE-2026-68131"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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