CVE-2024-46686

smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req()

MEDIUM

5.5

CVSS Score

Published: September 13, 2024 at 05:29 AM UTC

Updated: June 17, 2026 at 07:55 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req() This happens when called from SMB2_read() while using rdma and reaching the rdma_readwrite_threshold.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v ≥ 6.2.36.1.16 ≤ v < 6.1.1086.2.3 ≤ v < 6.36.3 ≤ v < 6.10.86.3 ≤ v < 6.116.3 ≤ v < 6.6.496.7 ≤ v < 6.10.86.1.16 6.11 rc1 6.11 rc2 6.11 rc3 6.11 rc4 6.11 rc5 6.2.374ab77137c99438626f4eb8134d8e26204bb5b64a6559cc1d35d3eeafb0296aca347b2f745a28a74edf38e9f4269591d26b3783c0b348c9345580c3c

Vendor states this is fixed in 6df57c63c200cd05e085c3b695128260e21959b7 (fixed)

Vendor states this is fixed in a01859dd6aebf826576513850a3b05992809e9d2 (fixed)

Vendor states this is fixed in b902fb78ab21299e4dd1775e7e8d251d5c0735bc (fixed)

Vendor states this is fixed in c724b2ab6a46435b4e7d58ad2fbbdb7a318823cf (fixed)

Vendor states this is fixed in 6.1.108 (unaffected)

Vendor states this is fixed in 6.10.8 (unaffected)

Vendor states this is fixed in 6.11 (unaffected)

Vendor states this is fixed in 6.3 (unaffected)

Vendor states this is fixed in 6.6.49 (unaffected)