CVE-2026-74717

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74717", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.928Z", "datePublished": "2026-08-22T15:33:11.488Z", "dateUpdated": "2026-10-16T19:16:11.661Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-25T05:41:59.788Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: fw_tracer, return NULL on create error\n\nTracer creation can fail by returning either NULL or ERR_PTR.\nThe return value is stored without a check on the device, and users\ntreat ERR_PTR and NULL the same way.\nThis also causes a crash in the core dump logic, which is missing the\nERR_PTR check and ends up dereferencing it, as shown in the trace below.\n\nSwitch tracer creation to return NULL on failure only, so callers only\nneed a single NULL check.\n\n Internal error: Oops: 0000000096000006 [#1] SMP\n Modules linked in: mlx5_ib ib_uverbs ib_core ipv6 mlx5_core\n CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.19.7 #1 PREEMPT(none)\n Workqueue: mlx5_health0001:01:00.0 mlx5_fw_reporter_err_work [mlx5_core]\n pstate: a3400009 (NzCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\n pc : mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core]\n lr : mlx5_fw_tracer_trigger_core_dump_general+0x40/0xe0 [mlx5_core]\n sp : ffff800081cf3c40\n x29: ffff800081cf3c90 x28: 0000000000000000 x27: 0000000000000000\n x26: ffff000080018828 x25: 0000000000000000 x24: ffff000080304a05\n x23: ffff800081cf3d80 x22: ffff0000847e01a0 x21: 0000000000000000\n x20: ffff0000847e01a0 x19: ffffffffffffffa1 x18: ffff80008310bbf0\n x17: ffff800080119650 x16: ffff80008010df54 x15: ffff80008010d4ac\n x14: ffff800079c202e4 x13: ffff80008002fe60 x12: ffff800080119650\n x11: ffff80008010df54 x10: ffff80008010d4ac x9 : ffff800079c203d8\n x8 : ffff800081cf3c88 x7 : 0000000000000000 x6 : 0000000000000000\n x5 : 0000000000000000 x4 : 0000000000000008 x3 : 0000000000000030\n x2 : 0000000000000008 x1 : 0000000000000000 x0 : 00000000c5c4000e\n Call trace:\n mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core] (P)\n mlx5_fw_reporter_dump+0x30/0x2e0 [mlx5_core]\n devlink_health_do_dump+0x9c/0x160\n devlink_health_report+0x1c0/0x288\n mlx5_fw_reporter_err_work+0xac/0xc0 [mlx5_core]\n process_one_work+0x15c/0x3d8\n worker_thread+0x18c/0x320\n kthread+0x148/0x228\n ret_from_fork+0x10/0x20\n Code: b9400000 5ac00800 7a401800 540003ca (3940a260)\n ---[ end trace 0000000000000000 ]---\n Kernel panic - not syncing: Oops: Fatal exception\n SMP: stopping secondary CPUs\n Kernel Offset: disabled\n CPU features: 0x000000,00078031,75fce5a1,35fffe67\n Memory Limit: none\n ---[ end Kernel panic - not syncing: Oops: Fatal exception ]---"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - On internet-facing cloud/HPC hosts with mlx5 PF NICs, a remote attacker can induce ConnectX firmware syndrome via crafted network/RDMA traffic; the kernel health poller then auto-invokes mlx5_fw_reporter_dump without any local syscall.\nAC:L - On affected hardware, mlx5_fw_tracer_create leaves ERR_PTR in dev->tracer at probe (e.g. -EOPNOTSUPP when trace_to_memory is unset); once present, any FW syndrome or health miss counter event reliably queues the dump workqueue that dereferences the bad pointer.\nPR:N - The crash path shown in the fix oops is triggered automatically by mlx5_fw_reporter_err_work from the health poller with no userspace action; inducing FW syndrome over the network requires no host credentials, unlike the optional devlink dump path that needs CAP_NET_ADMIN.\nUI:N - Exploitation requires no victim interaction; the devlink health auto_dump fires from kernel workqueues when firmware reports a syndrome or miss-count threshold, independent of user actions such as mounts or file opens.\nS:U - Impact is confined to kernel crash/panic on the host running mlx5_core; there is no VM escape, IOMMU bypass, or crossing from guest VF context into a separate security authority beyond standard host kernel failure.\nC:N - The bug is an ERR_PTR mishandled as a valid mlx5_fw_tracer pointer; mlx5_fw_tracer_trigger_core_dump_general dereferences tracer->owner and faults immediately, producing an oops with no out-of-bounds read, UAF, or information disclosure primitive.\nI:N - Faulting on an ERR_PTR-encoded address does not corrupt adjacent memory or provide a controllable write primitive; the only outcome is an unrecoverable kernel oops/panic, not arbitrary modification or code execution.\nA:H - The fix commit documents a fatal kernel Oops in mlx5_fw_tracer_trigger_core_dump_general followed by 'Kernel panic - not syncing', causing complete loss of host availability on affected mlx5 PF systems when the FW reporter dump path runs."}]}], "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/diag/fw_tracer.c"], "versions": [{"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "47fe0d2571e5b446a0f0b0c1d6b99f55e51f5cc0", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "ee41ea49c4ab0e4015919f52ad23ec251d3b39d3", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "04599570c3a18f9ae7aad36825eb46f3dcd2c4e3", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "9a416f000285a94c1b723877547981dec8132434", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "b1d6375b9a63c9dc7e5e780d3ea9b126fe30d6cb", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "80094352bd40ba54a33731f9c22872493983ed6d", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "4aafa600d93e9551c1f24e785d57cbd4adf021d5", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "af39eb111ce6b5eba9c08513b62c4868eb7e7fd5", "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/diag/fw_tracer.c"], "versions": [{"version": "5.3", "status": "affected"}, {"version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.265", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.183", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.152", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.104", "lessThanOrEqual": "6.12.*", "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": "5.3", "versionEndExcluding": "5.10.265"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.15.216"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.1.183"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.6.152"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.12.104"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.18.45"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "7.1.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/47fe0d2571e5b446a0f0b0c1d6b99f55e51f5cc0"}, {"url": "https://git.kernel.org/stable/c/ee41ea49c4ab0e4015919f52ad23ec251d3b39d3"}, {"url": "https://git.kernel.org/stable/c/04599570c3a18f9ae7aad36825eb46f3dcd2c4e3"}, {"url": "https://git.kernel.org/stable/c/9a416f000285a94c1b723877547981dec8132434"}, {"url": "https://git.kernel.org/stable/c/b1d6375b9a63c9dc7e5e780d3ea9b126fe30d6cb"}, {"url": "https://git.kernel.org/stable/c/80094352bd40ba54a33731f9c22872493983ed6d"}, {"url": "https://git.kernel.org/stable/c/4aafa600d93e9551c1f24e785d57cbd4adf021d5"}, {"url": "https://git.kernel.org/stable/c/af39eb111ce6b5eba9c08513b62c4868eb7e7fd5"}], "title": "net/mlx5: fw_tracer, return NULL on create error", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-74717", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-16T19:15:32.943854Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T19:16:11.661Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74717", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.928Z", "datePublished": "2026-08-22T15:33:11.488Z", "dateUpdated": "2026-10-16T19:16:11.661Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-25T05:41:59.788Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: fw_tracer, return NULL on create error\n\nTracer creation can fail by returning either NULL or ERR_PTR.\nThe return value is stored without a check on the device, and users\ntreat ERR_PTR and NULL the same way.\nThis also causes a crash in the core dump logic, which is missing the\nERR_PTR check and ends up dereferencing it, as shown in the trace below.\n\nSwitch tracer creation to return NULL on failure only, so callers only\nneed a single NULL check.\n\n Internal error: Oops: 0000000096000006 [#1] SMP\n Modules linked in: mlx5_ib ib_uverbs ib_core ipv6 mlx5_core\n CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.19.7 #1 PREEMPT(none)\n Workqueue: mlx5_health0001:01:00.0 mlx5_fw_reporter_err_work [mlx5_core]\n pstate: a3400009 (NzCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\n pc : mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core]\n lr : mlx5_fw_tracer_trigger_core_dump_general+0x40/0xe0 [mlx5_core]\n sp : ffff800081cf3c40\n x29: ffff800081cf3c90 x28: 0000000000000000 x27: 0000000000000000\n x26: ffff000080018828 x25: 0000000000000000 x24: ffff000080304a05\n x23: ffff800081cf3d80 x22: ffff0000847e01a0 x21: 0000000000000000\n x20: ffff0000847e01a0 x19: ffffffffffffffa1 x18: ffff80008310bbf0\n x17: ffff800080119650 x16: ffff80008010df54 x15: ffff80008010d4ac\n x14: ffff800079c202e4 x13: ffff80008002fe60 x12: ffff800080119650\n x11: ffff80008010df54 x10: ffff80008010d4ac x9 : ffff800079c203d8\n x8 : ffff800081cf3c88 x7 : 0000000000000000 x6 : 0000000000000000\n x5 : 0000000000000000 x4 : 0000000000000008 x3 : 0000000000000030\n x2 : 0000000000000008 x1 : 0000000000000000 x0 : 00000000c5c4000e\n Call trace:\n mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core] (P)\n mlx5_fw_reporter_dump+0x30/0x2e0 [mlx5_core]\n devlink_health_do_dump+0x9c/0x160\n devlink_health_report+0x1c0/0x288\n mlx5_fw_reporter_err_work+0xac/0xc0 [mlx5_core]\n process_one_work+0x15c/0x3d8\n worker_thread+0x18c/0x320\n kthread+0x148/0x228\n ret_from_fork+0x10/0x20\n Code: b9400000 5ac00800 7a401800 540003ca (3940a260)\n ---[ end trace 0000000000000000 ]---\n Kernel panic - not syncing: Oops: Fatal exception\n SMP: stopping secondary CPUs\n Kernel Offset: disabled\n CPU features: 0x000000,00078031,75fce5a1,35fffe67\n Memory Limit: none\n ---[ end Kernel panic - not syncing: Oops: Fatal exception ]---"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - On internet-facing cloud/HPC hosts with mlx5 PF NICs, a remote attacker can induce ConnectX firmware syndrome via crafted network/RDMA traffic; the kernel health poller then auto-invokes mlx5_fw_reporter_dump without any local syscall.\nAC:L - On affected hardware, mlx5_fw_tracer_create leaves ERR_PTR in dev->tracer at probe (e.g. -EOPNOTSUPP when trace_to_memory is unset); once present, any FW syndrome or health miss counter event reliably queues the dump workqueue that dereferences the bad pointer.\nPR:N - The crash path shown in the fix oops is triggered automatically by mlx5_fw_reporter_err_work from the health poller with no userspace action; inducing FW syndrome over the network requires no host credentials, unlike the optional devlink dump path that needs CAP_NET_ADMIN.\nUI:N - Exploitation requires no victim interaction; the devlink health auto_dump fires from kernel workqueues when firmware reports a syndrome or miss-count threshold, independent of user actions such as mounts or file opens.\nS:U - Impact is confined to kernel crash/panic on the host running mlx5_core; there is no VM escape, IOMMU bypass, or crossing from guest VF context into a separate security authority beyond standard host kernel failure.\nC:N - The bug is an ERR_PTR mishandled as a valid mlx5_fw_tracer pointer; mlx5_fw_tracer_trigger_core_dump_general dereferences tracer->owner and faults immediately, producing an oops with no out-of-bounds read, UAF, or information disclosure primitive.\nI:N - Faulting on an ERR_PTR-encoded address does not corrupt adjacent memory or provide a controllable write primitive; the only outcome is an unrecoverable kernel oops/panic, not arbitrary modification or code execution.\nA:H - The fix commit documents a fatal kernel Oops in mlx5_fw_tracer_trigger_core_dump_general followed by 'Kernel panic - not syncing', causing complete loss of host availability on affected mlx5 PF systems when the FW reporter dump path runs."}]}], "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/diag/fw_tracer.c"], "versions": [{"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "47fe0d2571e5b446a0f0b0c1d6b99f55e51f5cc0", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "ee41ea49c4ab0e4015919f52ad23ec251d3b39d3", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "04599570c3a18f9ae7aad36825eb46f3dcd2c4e3", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "9a416f000285a94c1b723877547981dec8132434", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "b1d6375b9a63c9dc7e5e780d3ea9b126fe30d6cb", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "80094352bd40ba54a33731f9c22872493983ed6d", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "4aafa600d93e9551c1f24e785d57cbd4adf021d5", "status": "affected", "versionType": "git"}, {"version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "lessThan": "af39eb111ce6b5eba9c08513b62c4868eb7e7fd5", "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/diag/fw_tracer.c"], "versions": [{"version": "5.3", "status": "affected"}, {"version": "0", "lessThan": "5.3", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.265", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.183", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.152", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.104", "lessThanOrEqual": "6.12.*", "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": "5.3", "versionEndExcluding": "5.10.265"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "5.15.216"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.1.183"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.6.152"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.12.104"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "6.18.45"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "7.1.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.3", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/47fe0d2571e5b446a0f0b0c1d6b99f55e51f5cc0"}, {"url": "https://git.kernel.org/stable/c/ee41ea49c4ab0e4015919f52ad23ec251d3b39d3"}, {"url": "https://git.kernel.org/stable/c/04599570c3a18f9ae7aad36825eb46f3dcd2c4e3"}, {"url": "https://git.kernel.org/stable/c/9a416f000285a94c1b723877547981dec8132434"}, {"url": "https://git.kernel.org/stable/c/b1d6375b9a63c9dc7e5e780d3ea9b126fe30d6cb"}, {"url": "https://git.kernel.org/stable/c/80094352bd40ba54a33731f9c22872493983ed6d"}, {"url": "https://git.kernel.org/stable/c/4aafa600d93e9551c1f24e785d57cbd4adf021d5"}, {"url": "https://git.kernel.org/stable/c/af39eb111ce6b5eba9c08513b62c4868eb7e7fd5"}], "title": "net/mlx5: fw_tracer, return NULL on create error", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-74717", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-16T19:15:32.943854Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T19:15:33.512Z"}}]}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "47fe0d2571e5b446a0f0b0c1d6b99f55e51f5cc0", "status": "affected", "version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "versionType": "git"}, {"lessThan": "ee41ea49c4ab0e4015919f52ad23ec251d3b39d3", "status": "affected", "version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "versionType": "git"}, {"lessThan": "04599570c3a18f9ae7aad36825eb46f3dcd2c4e3", "status": "affected", "version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "versionType": "git"}, {"lessThan": "9a416f000285a94c1b723877547981dec8132434", "status": "affected", "version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "versionType": "git"}, {"lessThan": "b1d6375b9a63c9dc7e5e780d3ea9b126fe30d6cb", "status": "affected", "version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "versionType": "git"}, {"lessThan": "80094352bd40ba54a33731f9c22872493983ed6d", "status": "affected", "version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "versionType": "git"}, {"lessThan": "4aafa600d93e9551c1f24e785d57cbd4adf021d5", "status": "affected", "version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "versionType": "git"}, {"lessThan": "af39eb111ce6b5eba9c08513b62c4868eb7e7fd5", "status": "affected", "version": "fd1483fe1f9fd45fe312adffb0faffa57446690d", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.3"}, {"lessThan": "5.3", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.265", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.152", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.104", "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/mlx5: fw_tracer, return NULL on create error\n\nTracer creation can fail by returning either NULL or ERR_PTR.\nThe return value is stored without a check on the device, and users\ntreat ERR_PTR and NULL the same way.\nThis also causes a crash in the core dump logic, which is missing the\nERR_PTR check and ends up dereferencing it, as shown in the trace below.\n\nSwitch tracer creation to return NULL on failure only, so callers only\nneed a single NULL check.\n\n Internal error: Oops: 0000000096000006 [#1] SMP\n Modules linked in: mlx5_ib ib_uverbs ib_core ipv6 mlx5_core\n CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.19.7 #1 PREEMPT(none)\n Workqueue: mlx5_health0001:01:00.0 mlx5_fw_reporter_err_work [mlx5_core]\n pstate: a3400009 (NzCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\n pc : mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core]\n lr : mlx5_fw_tracer_trigger_core_dump_general+0x40/0xe0 [mlx5_core]\n sp : ffff800081cf3c40\n x29: ffff800081cf3c90 x28: 0000000000000000 x27: 0000000000000000\n x26: ffff000080018828 x25: 0000000000000000 x24: ffff000080304a05\n x23: ffff800081cf3d80 x22: ffff0000847e01a0 x21: 0000000000000000\n x20: ffff0000847e01a0 x19: ffffffffffffffa1 x18: ffff80008310bbf0\n x17: ffff800080119650 x16: ffff80008010df54 x15: ffff80008010d4ac\n x14: ffff800079c202e4 x13: ffff80008002fe60 x12: ffff800080119650\n x11: ffff80008010df54 x10: ffff80008010d4ac x9 : ffff800079c203d8\n x8 : ffff800081cf3c88 x7 : 0000000000000000 x6 : 0000000000000000\n x5 : 0000000000000000 x4 : 0000000000000008 x3 : 0000000000000030\n x2 : 0000000000000008 x1 : 0000000000000000 x0 : 00000000c5c4000e\n Call trace:\n mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core] (P)\n mlx5_fw_reporter_dump+0x30/0x2e0 [mlx5_core]\n devlink_health_do_dump+0x9c/0x160\n devlink_health_report+0x1c0/0x288\n mlx5_fw_reporter_err_work+0xac/0xc0 [mlx5_core]\n process_one_work+0x15c/0x3d8\n worker_thread+0x18c/0x320\n kthread+0x148/0x228\n ret_from_fork+0x10/0x20\n Code: b9400000 5ac00800 7a401800 540003ca (3940a260)\n ---[ end trace 0000000000000000 ]---\n Kernel panic - not syncing: Oops: Fatal exception\n SMP: stopping secondary CPUs\n Kernel Offset: disabled\n CPU features: 0x000000,00078031,75fce5a1,35fffe67\n Memory Limit: none\n ---[ end Kernel panic - not syncing: Oops: Fatal exception ]---"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad:\n\nnet/mlx5: fw_tracer, devuelve NULL en error de creaci\u00f3n\n\nLa creaci\u00f3n del tracer puede fallar devolviendo NULL o ERR_PTR.\nEl valor de retorno se almacena sin una verificaci\u00f3n en el dispositivo, y los usuarios tratan ERR_PTR y NULL de la misma manera.\nEsto tambi\u00e9n causa un fallo en la l\u00f3gica de volcado de memoria (core dump), que carece de la verificaci\u00f3n de ERR_PTR y termina desreferenci\u00e1ndolo, como se muestra en el rastreo a continuaci\u00f3n.\n\nCambiar la creaci\u00f3n del tracer para que devuelva NULL solo en caso de fallo, de modo que los llamadores solo necesiten una \u00fanica verificaci\u00f3n de NULL.\n\n Error interno: Oops: 0000000096000006 [#1] SMP\n M\u00f3dulos enlazados: mlx5_ib ib_uverbs ib_core ipv6 mlx5_core\n CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 No contaminado 6.19.7 #1 PREEMPT(none)\n Cola de trabajo: mlx5_health0001:01:00.0 mlx5_fw_reporter_err_work [mlx5_core]\n pstate: a3400009 (NzCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\n pc : mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core]\n lr : mlx5_fw_tracer_trigger_core_dump_general+0x40/0xe0 [mlx5_core]\n sp : ffff800081cf3c40\n x29: ffff800081cf3c90 x28: 0000000000000000 x27: 0000000000000000\n x26: ffff000080018828 x25: 0000000000000000 x24: ffff000080304a05\n x23: ffff800081cf3d80 x22: ffff0000847e01a0 x21: 0000000000000000\n x20: ffff0000847e01a0 x19: ffffffffffffffa1 x18: ffff80008310bbf0\n x17: ffff800080119650 x16: ffff80008010df54 x15: ffff80008010d4ac\n x14: ffff800079c202e4 x13: ffff80008002fe60 x12: ffff800080119650\n x11: ffff80008010df54 x10: ffff80008010d4ac x9 : ffff800079c203d8\n x8 : ffff800081cf3c88 x7 : 0000000000000000 x6 : 0000000000000000\n x5 : 0000000000000000 x4 : 0000000000000008 x3 : 0000000000000030\n x2 : 0000000000000008 x1 : 0000000000000000 x0 : 00000000c5c4000e\n Rastreo de llamadas:\n mlx5_fw_tracer_trigger_core_dump_general+0x58/0xe0 [mlx5_core] (P)\n mlx5_fw_reporter_dump+0x30/0x2e0 [mlx5_core]\n devlink_health_do_dump+0x9c/0x160\n devlink_health_report+0x1c0/0x288\n mlx5_fw_reporter_err_work+0xac/0xc0 [mlx5_core]\n process_one_work+0x15c/0x3d8\n worker_thread+0x18c/0x320\n kthread+0x148/0x228\n ret_from_fork+0x10/0x20\n C\u00f3digo: b9400000 5ac00800 7a401800 540003ca (3940a260)\n ---[ fin del rastreo 0000000000000000 ]---\n P\u00e1nico del kernel - no sincronizando: Oops: Excepci\u00f3n fatal\n SMP: deteniendo CPUs secundarias\n Desplazamiento del kernel: deshabilitado\n Caracter\u00edsticas de la CPU: 0x000000,00078031,75fce5a1,35fffe67\n L\u00edmite de memoria: ninguno\n ---[ fin del P\u00e1nico del kernel - no sincronizando: Oops: Excepci\u00f3n fatal ]---"}], "id": "CVE-2026-74717", "lastModified": "2026-10-16T20:17:54.363", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-74717", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T19:15:32.943854Z", "version": "2.0.3"}}]}, "published": "2026-08-22T16:16:46.570", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/04599570c3a18f9ae7aad36825eb46f3dcd2c4e3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/47fe0d2571e5b446a0f0b0c1d6b99f55e51f5cc0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4aafa600d93e9551c1f24e785d57cbd4adf021d5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/80094352bd40ba54a33731f9c22872493983ed6d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9a416f000285a94c1b723877547981dec8132434"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/af39eb111ce6b5eba9c08513b62c4868eb7e7fd5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b1d6375b9a63c9dc7e5e780d3ea9b126fe30d6cb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ee41ea49c4ab0e4015919f52ad23ec251d3b39d3"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: net/mlx5: fw_tracer, return NULL on create error", "id": "2521387", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521387"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["A flaw was found in the Linux kernel's `net/mlx5` component. This vulnerability occurs because the firmware tracer (fw_tracer) does not properly handle error return values, specifically when `ERR_PTR` is returned instead of `NULL`. An attacker could potentially trigger a kernel panic by exploiting this unchecked return value, leading to a denial of service (DoS) condition."], "name": "CVE-2026-74717", "public_date": "2026-08-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74717\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74717\nhttps://lore.kernel.org/linux-cve-announce/2026082239-CVE-2026-74717-c321@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd1483fe1f9fd45fe312adffb0faffa57446690d,47fe0d2571e5b446a0f0b0c1d6b99f55e51f5cc0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd1483fe1f9fd45fe312adffb0faffa57446690d,ee41ea49c4ab0e4015919f52ad23ec251d3b39d3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd1483fe1f9fd45fe312adffb0faffa57446690d,04599570c3a18f9ae7aad36825eb46f3dcd2c4e3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd1483fe1f9fd45fe312adffb0faffa57446690d,9a416f000285a94c1b723877547981dec8132434)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd1483fe1f9fd45fe312adffb0faffa57446690d,b1d6375b9a63c9dc7e5e780d3ea9b126fe30d6cb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd1483fe1f9fd45fe312adffb0faffa57446690d,80094352bd40ba54a33731f9c22872493983ed6d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd1483fe1f9fd45fe312adffb0faffa57446690d,4aafa600d93e9551c1f24e785d57cbd4adf021d5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fd1483fe1f9fd45fe312adffb0faffa57446690d,af39eb111ce6b5eba9c08513b62c4868eb7e7fd5)"}}], "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": "5.3"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.3)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.265,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.216,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.183,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.152,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.104,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.45,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.9,7.2.0)"}}, {"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": "2026-08-22T18:30:16.837286+00:00", "updated": "2026-08-25T08:00:13.900080+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}