{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74698", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.927Z", "datePublished": "2026-08-22T15:32:59.703Z", "dateUpdated": "2026-08-22T15:32:59.703Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-22T15:32:59.703Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: fix BQL reset on SQ re-activation\n\nmlx5e_queue_start() deactivates and re-activates all channels but closes\nonly the queue being restarted. mlx5e_activate_txqsq() then\nunconditionally calls netdev_tx_reset_queue(), zeroing the BQL counters\nof channels that kept their in-flight TX WQEs. The next completion then\nover-charges and trips the BUG_ON() in dql_completed():\n\n kernel BUG at lib/dynamic_queue_limits.c:99!\n RIP: 0010:dql_completed+0x23d/0x280\n Call Trace:\n <IRQ>\n mlx5e_poll_tx_cq+0x668/0xa60\n mlx5e_napi_poll+0x5b/0x7b0\n net_rx_action+0x15a/0x580\n\nReset BQL only when the SQ has no bytes in flight (sq->cc == sq->pc).\n\nIn the case that reset is skipped, the outstanding WQEs will eventually\ncomplete and rebalance the dql. The dql->limit is carried across the\nreset."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/en_main.c"], "versions": [{"version": "b2588ea40ec9472688289c1a644627c0f4a1f33f", "lessThan": "88664c48d7d1eca8e1ac92da85c89c26af741cf1", "status": "affected", "versionType": "git"}, {"version": "b2588ea40ec9472688289c1a644627c0f4a1f33f", "lessThan": "d2897717cd222e575599d903d885c48602699800", "status": "affected", "versionType": "git"}, {"version": "b2588ea40ec9472688289c1a644627c0f4a1f33f", "lessThan": "e7386770be1bf810bcd6af39d1e4bfeab3408430", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/en_main.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.45", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.9", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.18.45"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.1.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/88664c48d7d1eca8e1ac92da85c89c26af741cf1"}, {"url": "https://git.kernel.org/stable/c/d2897717cd222e575599d903d885c48602699800"}, {"url": "https://git.kernel.org/stable/c/e7386770be1bf810bcd6af39d1e4bfeab3408430"}], "title": "net/mlx5e: fix BQL reset on SQ re-activation", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/en_main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "88664c48d7d1eca8e1ac92da85c89c26af741cf1", "status": "affected", "version": "b2588ea40ec9472688289c1a644627c0f4a1f33f", "versionType": "git"}, {"lessThan": "d2897717cd222e575599d903d885c48602699800", "status": "affected", "version": "b2588ea40ec9472688289c1a644627c0f4a1f33f", "versionType": "git"}, {"lessThan": "e7386770be1bf810bcd6af39d1e4bfeab3408430", "status": "affected", "version": "b2588ea40ec9472688289c1a644627c0f4a1f33f", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/en_main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.17"}, {"lessThan": "6.17", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.45", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: fix BQL reset on SQ re-activation\n\nmlx5e_queue_start() deactivates and re-activates all channels but closes\nonly the queue being restarted. mlx5e_activate_txqsq() then\nunconditionally calls netdev_tx_reset_queue(), zeroing the BQL counters\nof channels that kept their in-flight TX WQEs. The next completion then\nover-charges and trips the BUG_ON() in dql_completed():\n\n kernel BUG at lib/dynamic_queue_limits.c:99!\n RIP: 0010:dql_completed+0x23d/0x280\n Call Trace:\n <IRQ>\n mlx5e_poll_tx_cq+0x668/0xa60\n mlx5e_napi_poll+0x5b/0x7b0\n net_rx_action+0x15a/0x580\n\nReset BQL only when the SQ has no bytes in flight (sq->cc == sq->pc).\n\nIn the case that reset is skipped, the outstanding WQEs will eventually\ncomplete and rebalance the dql. The dql->limit is carried across the\nreset."}], "id": "CVE-2026-74698", "lastModified": "2026-08-22T16:16:44.397", "metrics": {}, "published": "2026-08-22T16:16:44.397", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/88664c48d7d1eca8e1ac92da85c89c26af741cf1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d2897717cd222e575599d903d885c48602699800"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e7386770be1bf810bcd6af39d1e4bfeab3408430"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b2588ea40ec9472688289c1a644627c0f4a1f33f,88664c48d7d1eca8e1ac92da85c89c26af741cf1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b2588ea40ec9472688289c1a644627c0f4a1f33f,d2897717cd222e575599d903d885c48602699800)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b2588ea40ec9472688289c1a644627c0f4a1f33f,e7386770be1bf810bcd6af39d1e4bfeab3408430)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.17)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.45,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1.9,7.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-22T19:00:14.810626+00:00", "updated": "2026-08-22T22:30:16.748967+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}