CVE-2026-53177 (GCVE-0-2026-53177)
Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-06-25 08:38
VLAI?
Title
bnxt_en: Fix NULL pointer dereference
Summary
In the Linux kernel, the following vulnerability has been resolved:
bnxt_en: Fix NULL pointer dereference
PCIe errors detected by a Root Port or Downstream Port cause error
recovery services to run on all subordinate devices regardless of
administrative state.
The .error_detected() callback, bnxt_io_error_detected(), disables
and synchronizes IRQs via bnxt_disable_int_sync(), which calls
bnxt_cp_num_to_irq_num() to map completion rings to IRQs using
bp->bnapi.
Since bp->bnapi is allocated on NIC open and freed on NIC close, PCIe
error recovery on a closed NIC can dereference a NULL pointer.
Check if bp->bnapi is NULL before disabling and synchronizing IRQs.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
e5811b8c09df9bc80eabc95339fceded23f16289 , < 964b1c3eb71afe58bb61c8b984164447e000ae8a
(git)
Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 59c5a3e69c7630a811565937e64be70b08436761 (git) Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 1a418ad0e5e525d1d117dd1601681f75455af320 (git) Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 08e57d014ea19f303d5d57a849beb846f37788b7 (git) Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 3884976f87448e269908ae61bd5d62d54ce9c0c7 (git) Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < 580844a9683afe7974856dd5b7886447435b3474 (git) Affected: e5811b8c09df9bc80eabc95339fceded23f16289 , < d930276f2cddd0b7294cac7a8fe7b877f6d9e08d (git) |
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{
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"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/broadcom/bnxt/bnxt.c"
],
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"vendor": "Linux",
"versions": [
{
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"version": "4.17"
},
{
"lessThan": "4.17",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.210",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.176",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.143",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.94",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.36",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"version": "7.0.13",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
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}
],
"negate": false,
"operator": "OR"
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix NULL pointer dereference\n\nPCIe errors detected by a Root Port or Downstream Port cause error\nrecovery services to run on all subordinate devices regardless of\nadministrative state.\n\nThe .error_detected() callback, bnxt_io_error_detected(), disables\nand synchronizes IRQs via bnxt_disable_int_sync(), which calls\nbnxt_cp_num_to_irq_num() to map completion rings to IRQs using\nbp-\u003ebnapi.\n\nSince bp-\u003ebnapi is allocated on NIC open and freed on NIC close, PCIe\nerror recovery on a closed NIC can dereference a NULL pointer.\n\nCheck if bp-\u003ebnapi is NULL before disabling and synchronizing IRQs."
}
],
"providerMetadata": {
"dateUpdated": "2026-06-25T08:38:53.347Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/964b1c3eb71afe58bb61c8b984164447e000ae8a"
},
{
"url": "https://git.kernel.org/stable/c/59c5a3e69c7630a811565937e64be70b08436761"
},
{
"url": "https://git.kernel.org/stable/c/1a418ad0e5e525d1d117dd1601681f75455af320"
},
{
"url": "https://git.kernel.org/stable/c/08e57d014ea19f303d5d57a849beb846f37788b7"
},
{
"url": "https://git.kernel.org/stable/c/3884976f87448e269908ae61bd5d62d54ce9c0c7"
},
{
"url": "https://git.kernel.org/stable/c/580844a9683afe7974856dd5b7886447435b3474"
},
{
"url": "https://git.kernel.org/stable/c/d930276f2cddd0b7294cac7a8fe7b877f6d9e08d"
}
],
"title": "bnxt_en: Fix NULL pointer dereference",
"x_generator": {
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}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-53177",
"datePublished": "2026-06-25T08:38:53.347Z",
"dateReserved": "2026-06-09T07:44:35.389Z",
"dateUpdated": "2026-06-25T08:38:53.347Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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