{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-68779", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T10:30:51.036Z", "datePublished": "2026-01-13T15:28:54.795Z", "dateUpdated": "2026-02-09T08:33:25.186Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-02-09T08:33:25.186Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Avoid unregistering PSP twice\n\nPSP is unregistered twice in:\n_mlx5e_remove -> mlx5e_psp_unregister\nmlx5e_nic_cleanup -> mlx5e_psp_unregister\n\nThis leads to a refcount underflow in some conditions:\n------------[ cut here ]------------\nrefcount_t: underflow; use-after-free.\nWARNING: CPU: 2 PID: 1694 at lib/refcount.c:28 refcount_warn_saturate+0xd8/0xe0\n[...]\n mlx5e_psp_unregister+0x26/0x50 [mlx5_core]\n mlx5e_nic_cleanup+0x26/0x90 [mlx5_core]\n mlx5e_remove+0xe6/0x1f0 [mlx5_core]\n auxiliary_bus_remove+0x18/0x30\n device_release_driver_internal+0x194/0x1f0\n bus_remove_device+0xc6/0x130\n device_del+0x159/0x3c0\n mlx5_rescan_drivers_locked+0xbc/0x2a0 [mlx5_core]\n[...]\n\nDo not directly remove psp from the _mlx5e_remove path, the PSP cleanup\nhappens as part of profile cleanup."}], "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": "89ee2d92f66c45625ff1c173df2dbdea32568c5d", "lessThan": "e12c912f92ccea671b514caf371f28485714bb4b", "status": "affected", "versionType": "git"}, {"version": "89ee2d92f66c45625ff1c173df2dbdea32568c5d", "lessThan": "35e93736f69963337912594eb3951ab320b77521", "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": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.3", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "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": "6.18", "versionEndExcluding": "6.18.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e12c912f92ccea671b514caf371f28485714bb4b"}, {"url": "https://git.kernel.org/stable/c/35e93736f69963337912594eb3951ab320b77521"}], "title": "net/mlx5e: Avoid unregistering PSP twice", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Avoid unregistering PSP twice\n\nPSP is unregistered twice in:\n_mlx5e_remove -> mlx5e_psp_unregister\nmlx5e_nic_cleanup -> mlx5e_psp_unregister\n\nThis leads to a refcount underflow in some conditions:\n------------[ cut here ]------------\nrefcount_t: underflow; use-after-free.\nWARNING: CPU: 2 PID: 1694 at lib/refcount.c:28 refcount_warn_saturate+0xd8/0xe0\n[...]\n mlx5e_psp_unregister+0x26/0x50 [mlx5_core]\n mlx5e_nic_cleanup+0x26/0x90 [mlx5_core]\n mlx5e_remove+0xe6/0x1f0 [mlx5_core]\n auxiliary_bus_remove+0x18/0x30\n device_release_driver_internal+0x194/0x1f0\n bus_remove_device+0xc6/0x130\n device_del+0x159/0x3c0\n mlx5_rescan_drivers_locked+0xbc/0x2a0 [mlx5_core]\n[...]\n\nDo not directly remove psp from the _mlx5e_remove path, the PSP cleanup\nhappens as part of profile cleanup."}], "id": "CVE-2025-68779", "lastModified": "2026-01-14T16:26:00.933", "metrics": {}, "published": "2026-01-13T16:15:57.550", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/35e93736f69963337912594eb3951ab320b77521"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e12c912f92ccea671b514caf371f28485714bb4b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: net/mlx5e: Avoid unregistering PSP twice", "id": "2429074", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2429074"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet/mlx5e: Avoid unregistering PSP twice\nPSP is unregistered twice in:\n_mlx5e_remove -> mlx5e_psp_unregister\nmlx5e_nic_cleanup -> mlx5e_psp_unregister\nThis leads to a refcount underflow in some conditions:\n------------[ cut here ]------------\nrefcount_t: underflow; use-after-free.\nWARNING: CPU: 2 PID: 1694 at lib/refcount.c:28 refcount_warn_saturate+0xd8/0xe0\n[...]\nmlx5e_psp_unregister+0x26/0x50 [mlx5_core]\nmlx5e_nic_cleanup+0x26/0x90 [mlx5_core]\nmlx5e_remove+0xe6/0x1f0 [mlx5_core]\nauxiliary_bus_remove+0x18/0x30\ndevice_release_driver_internal+0x194/0x1f0\nbus_remove_device+0xc6/0x130\ndevice_del+0x159/0x3c0\nmlx5_rescan_drivers_locked+0xbc/0x2a0 [mlx5_core]\n[...]\nDo not directly remove psp from the _mlx5e_remove path, the PSP cleanup\nhappens as part of profile cleanup."], "name": "CVE-2025-68779", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-01-13T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-68779\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-68779\nhttps://lore.kernel.org/linux-cve-announce/2026011300-CVE-2025-68779-726e@gregkh/T"], "threat_severity": "Moderate"}

{}