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vuln-cve/data/2025/68xxx/CVE-2025-68779.json
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{
"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": "2026-05-11T21:53:11.439Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T21:53:11.439Z"
},
"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"
}
}
}
}