CVE-2025-38053

Description

In the Linux kernel, the following vulnerability has been resolved: idpf: fix null-ptr-deref in idpf_features_check idpf_features_check is used to validate the TX packet. skb header length is compared with the hardware supported value received from the device control plane. The value is stored in the adapter structure and to access it, vport pointer is used. During reset all the vports are released and the vport pointer that the netdev private structure points to is NULL. To avoid null-ptr-deref, store the max header length value in netdev private structure. This also helps to cache the value and avoid accessing adapter pointer in hot path. BUG: kernel NULL pointer dereference, address: 0000000000000068 ... RIP: 0010:idpf_features_check+0x6d/0xe0 [idpf] Call Trace: <TASK> ? __die+0x23/0x70 ? page_fault_oops+0x154/0x520 ? exc_page_fault+0x76/0x190 ? asm_exc_page_fault+0x26/0x30 ? idpf_features_check+0x6d/0xe0 [idpf] netif_skb_features+0x88/0x310 validate_xmit_skb+0x2a/0x2b0 validate_xmit_skb_list+0x4c/0x70 sch_direct_xmit+0x19d/0x3a0 __dev_queue_xmit+0xb74/0xe70 ...

Reserved 2025-04-16 | Published 2025-06-18 | Updated 2025-06-18 | Assigner Linux

Product status

Default status
unaffected

a251eee62133774cf35ff829041377e721ef9c8c before f6f5e9c8cb680c3cb9771fd9fa114319cbc4f514
affected

a251eee62133774cf35ff829041377e721ef9c8c before bf1e751c5a5611aa037ab44cca955c141eb68dcc
affected

a251eee62133774cf35ff829041377e721ef9c8c before 2dabe349f7882ff1407a784d54d8541909329088
affected

Default status
affected

6.7
affected

Any version before 6.7
unaffected

6.12.31
unaffected

6.14.9
unaffected

6.15
unaffected

References

git.kernel.org/...c/f6f5e9c8cb680c3cb9771fd9fa114319cbc4f514

git.kernel.org/...c/bf1e751c5a5611aa037ab44cca955c141eb68dcc

git.kernel.org/...c/2dabe349f7882ff1407a784d54d8541909329088

cve.org (CVE-2025-38053)

nvd.nist.gov (CVE-2025-38053)

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