CVE-2026-53086
published 2026-06-24CVE-2026-53086: In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix racing timeout handler The bcmgenet_timeout handler tries to take down…
PriorityP344critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.39%
30.9th percentile
In the Linux kernel, the following vulnerability has been resolved:
net: bcmgenet: fix racing timeout handler
The bcmgenet_timeout handler tries to take down all tx queues when
a single queue times out. This is over zealous and causes many race
conditions with queues that are still chugging along. Instead lets
only restart the timed out queue.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | >= 13ea657806cf73b379a0109f7042182f47c351a7 < e85b0c0a12e967930044608311471b665baa315c | e85b0c0a12e967930044608311471b665baa315c |
| linux | linux | >= 13ea657806cf73b379a0109f7042182f47c351a7 < e8206538cbaf4f4068e99a4cb1138690a1e00499 | e8206538cbaf4f4068e99a4cb1138690a1e00499 |
| linux | linux | >= 13ea657806cf73b379a0109f7042182f47c351a7 < 681fdfe823b4f1036ed50b58b8838c7917ea389c | 681fdfe823b4f1036ed50b58b8838c7917ea389c |
| linux | linux | >= 13ea657806cf73b379a0109f7042182f47c351a7 < c270e2bec3e55a716d25c35341091339457ac883 | c270e2bec3e55a716d25c35341091339457ac883 |
| linux | linux | >= 13ea657806cf73b379a0109f7042182f47c351a7 < 7ce1c26aac3b318886a57425f64b522da7389153 | 7ce1c26aac3b318886a57425f64b522da7389153 |
| linux | linux | >= 13ea657806cf73b379a0109f7042182f47c351a7 < 5393b2b5bee2ac51a0043dc7f4ac3475f053d08d | 5393b2b5bee2ac51a0043dc7f4ac3475f053d08d |
| linux | linux_kernel | — | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vendor_redhat5.5MEDIUM
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GHSA
In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix racing timeout handler The bcmgenet_timeout handler tries to take down all tx queues when a single queue times
ghsa_unreviewed·2026-06-24
CVE-2026-53086 In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix racing timeout handler The bcmgenet_timeout handler tries to take down all tx queues when a single queue times
In the Linux kernel, the following vulnerability has been resolved:
net: bcmgenet: fix racing timeout handler
The bcmgenet_timeout handler tries to take down all tx queues when
a single queue times out. This is over zealous and causes many race
conditions with queues that are still chugging along. Instead lets
only restart the timed out queue.
VulDB
Linux Kernel up to 7.0.9 net denial of service
vuldb·2026-06-24
CVE-2026-53086 [CRITICAL] Linux Kernel up to 7.0.9 net denial of service
A vulnerability categorized as critical has been discovered in Linux Kernel up to 6.1.174/6.6.140/6.12.90/6.18.32/7.0.9. Impacted is an unknown function of the component net. Executing a manipulation can lead to denial of service.
The identification of this vulnerability is CVE-2026-53086. The attack needs to be done within the local network. There is no exploit available.
It is advisable to upgrade the affected component.
Red Hat
kernel: net: bcmgenet: fix racing timeout handler
vendor_redhat·2026-06-24·CVSS 5.5
CVE-2026-53086 [MEDIUM] CWE-366 kernel: net: bcmgenet: fix racing timeout handler
kernel: net: bcmgenet: fix racing timeout handler
In the Linux kernel, the following vulnerability has been resolved:
net: bcmgenet: fix racing timeout handler
The bcmgenet_timeout handler tries to take down all tx queues when
a single queue times out. This is over zealous and causes many race
conditions with queues that are still chugging along. Instead lets
only restart the timed out queue.
A flaw was found in the Linux kernel's `bcmgenet` network driver. This vulnerability arises from an overly aggressive timeout handler that attempts to reset all network transmission queues when only one experiences an issue. This behavior can create race conditions, potentially leading to system instability or a denial of service, where network services become unavailable.
Package: kernel (Red Hat
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/5393b2b5bee2ac51a0043dc7f4ac3475f053d08dhttps://git.kernel.org/stable/c/681fdfe823b4f1036ed50b58b8838c7917ea389chttps://git.kernel.org/stable/c/7ce1c26aac3b318886a57425f64b522da7389153https://git.kernel.org/stable/c/c270e2bec3e55a716d25c35341091339457ac883https://git.kernel.org/stable/c/e8206538cbaf4f4068e99a4cb1138690a1e00499https://git.kernel.org/stable/c/e85b0c0a12e967930044608311471b665baa315c
2026-06-24
Published