5.5

CVE-2025-22108

bnxt_en: Mask the bd_cnt field in the TX BD properly

In the Linux kernel, the following vulnerability has been resolved:

bnxt_en: Mask the bd_cnt field in the TX BD properly

The bd_cnt field in the TX BD specifies the total number of BDs for
the TX packet.  The bd_cnt field has 5 bits and the maximum number
supported is 32 with the value 0.

CONFIG_MAX_SKB_FRAGS can be modified and the total number of SKB
fragments can approach or exceed the maximum supported by the chip.
Add a macro to properly mask the bd_cnt field so that the value 32
will be properly masked and set to 0 in the bd_cnd field.

Without this patch, the out-of-range bd_cnt value will corrupt the
TX BD and may cause TX timeout.

The next patch will check for values exceeding 32.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.4 < 6.14.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.26% 0.184
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
416baaa9-dc9f-4396-8d5f-8c081fb06d67 8.6 3.9 4.7
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/f60b41b815826f15c4d0323f923f398c423178d0
Patch
https://git.kernel.org/stable/c/107b25db61122d8f990987895c2912927b8b6e3f
Patch
https://git.kernel.org/stable/c/9ee185e0f15594017a6f1a191ebe6630cfea5f74