CVE-2025-38053

idpffeaturescheck 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:idpffeaturescheck+0x6d/0xe0 [idpf] Call Trace: <TASK> ? _die+0x23/0x70 ? pagefaultoops+0x154/0x520 ? excpagefault+0x76/0x190 ? asmexcpagefault+0x26/0x30 ? idpffeaturescheck+0x6d/0xe0 [idpf] netifskbfeatures+0x88/0x310 validatexmitskb+0x2a/0x2b0 validatexmitskblist+0x4c/0x70 schdirectxmit+0x19d/0x3a0 _devqueuexmit+0xb74/0xe70 ...

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

a251eee62133774cf35ff829041377e721ef9c8c

Fixed

f6f5e9c8cb680c3cb9771fd9fa114319cbc4f514

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

a251eee62133774cf35ff829041377e721ef9c8c

Fixed

bf1e751c5a5611aa037ab44cca955c141eb68dcc

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

a251eee62133774cf35ff829041377e721ef9c8c

Fixed

2dabe349f7882ff1407a784d54d8541909329088

Affected versions

v6.*

v6.10

v6.10-rc1

v6.10-rc2

v6.10-rc3

v6.10-rc4

v6.10-rc5

v6.10-rc6

v6.10-rc7

v6.11

v6.11-rc1

v6.11-rc2

v6.11-rc3

v6.11-rc4

v6.11-rc5

v6.11-rc6

v6.11-rc7

v6.12

v6.12-rc1

v6.12-rc2

v6.12-rc3

v6.12-rc4

v6.12-rc5

v6.12-rc6

v6.12-rc7

v6.12.1

v6.12.10

v6.12.11

v6.12.12

v6.12.13

v6.12.14

v6.12.15

v6.12.16

v6.12.17

v6.12.18

v6.12.19

v6.12.2

v6.12.20

v6.12.21

v6.12.22

v6.12.23

v6.12.24

v6.12.25

v6.12.26

v6.12.27

v6.12.28

v6.12.29

v6.12.3

v6.12.30

v6.12.4

v6.12.5

v6.12.6

v6.12.7

v6.12.8

v6.12.9

v6.13

v6.13-rc1

v6.13-rc2

v6.13-rc3

v6.13-rc4

v6.13-rc5

v6.13-rc6

v6.13-rc7

v6.14

v6.14-rc1

v6.14-rc2

v6.14-rc3

v6.14-rc4

v6.14-rc5

v6.14-rc6

v6.14-rc7

v6.14.1

v6.14.2

v6.14.3

v6.14.4

v6.14.5

v6.14.6

v6.14.7

v6.14.8

v6.15-rc1

v6.15-rc2

v6.15-rc3

v6.15-rc4

v6.15-rc5

v6.15-rc6

v6.6

v6.6-rc1

v6.6-rc2

v6.6-rc3

v6.6-rc4

v6.6-rc5

v6.6-rc6

v6.6-rc7

v6.7

v6.7-rc1

v6.7-rc2

v6.7-rc3

v6.7-rc4

v6.7-rc5

v6.7-rc6

v6.7-rc7

v6.7-rc8

v6.8

v6.8-rc1

v6.8-rc2

v6.8-rc3

v6.8-rc4

v6.8-rc5

v6.8-rc6

v6.8-rc7

v6.9

v6.9-rc1

v6.9-rc2

v6.9-rc3

v6.9-rc4

v6.9-rc5

v6.9-rc6

v6.9-rc7

Database specific

vanir_signatures

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Linux / Kernel

Package

Name: Kernel

Affected ranges

Type: ECOSYSTEM
Events: Introduced

6.7.0

Fixed

6.12.31

Type: ECOSYSTEM
Events: Introduced

6.13.0

Fixed

6.14.9