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CVE PROGRAM SOURCE RECORD8.6 High

CVE-2025-22108

bnxt_en: Mask the bd_cnt field in the TX BD properly

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 3948b05950fdd64002a5f182c65ba5cf2d53cf71 to < 9ee185e0f15594017a6f1a191ebe6630cfea5f74affected
  • 3948b05950fdd64002a5f182c65ba5cf2d53cf71 to < f60b41b815826f15c4d0323f923f398c423178d0affected
  • 3948b05950fdd64002a5f182c65ba5cf2d53cf71 to < 107b25db61122d8f990987895c2912927b8b6e3faffected

Linux Linux

Default version status: affected

  • 6.4affected
  • 0 to < 6.4unaffected
  • 6.12.109 to ≤ 6.12.*unaffected
  • 6.14.2 to ≤ 6.14.*unaffected
  • 6.15 to ≤ *unaffected

References