Medium 5.5Published May 20, 2024

CVE-2024-35984i2c: smbus: fix NULL function pointer dereference

Updated under an hour ago (Oct 27, 2026, 5:40 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: i2c: smbus: fix NULL function pointer dereference Baruch reported an OOPS when using the designware controller as target only. Target-only modes break the assumption of one transfer function always being available. Fix this by always checking the pointer in __i2c_transfer. [wsa: dropped the simplification in core-smbus to avoid theoretical regressions]

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	63453b59e41173241c4efe9335815f6432fa8586 builds before 40f1d79f07b49c8a64a861706e5163f2db4bd95d; from 63453b59e41173241c4efe9335815f6432fa8586 before ad3c3ac7a03be3697114f781193dd3e9d97e6e23; 63453b59e41173241c4efe9335815f6432fa8586 builds before 5fd72404587d7db4acb2d241fd8c387afb0a7aec; 63453b59e41173241c4efe9335815f6432fa8586 builds before 5a09eae9a7db597fe0c1fc91636205b4a25d2620; 63453b59e41173241c4efe9335815f6432fa8586 builds before 4e75e222d397c6752b229ed72fc4644c8c36ecde; from 63453b59e41173241c4efe9335815f6432fa8586 before e3425674ff68dc521c57c6eabad0cbd20a027d85; 63453b59e41173241c4efe9335815f6432fa8586 builds before 357c64ef1ef39b1e7cd91ab6bdd304d043702c83; from 63453b59e41173241c4efe9335815f6432fa8586 before 91811a31b68d3765b3065f4bb6d7d6d84a7cfc9f	CNA record
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name)	before V3.1	CISA ADP
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name)	all versions not affected	CISA ADP
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name)	before V3.1	CISA ADP
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	before V1.1.1	CISA ADP
linux linux_kernel linux:linux_kernel	from 3.19 before 4.19.313; from 4.20 before 5.4.275; from 5.5 before 5.10.216; from 5.11 before 5.15.158; from 5.16 before 6.1.90; from 6.2 before 6.6.30; from 6.7 before 6.8.9	NVD

References

References

https://git.kernel.org/stable/c/40f1d79f07b49c8a64a861706e5163f2db4bd95d	patch
https://git.kernel.org/stable/c/ad3c3ac7a03be3697114f781193dd3e9d97e6e23	patch
https://git.kernel.org/stable/c/5fd72404587d7db4acb2d241fd8c387afb0a7aec	patch
https://git.kernel.org/stable/c/5a09eae9a7db597fe0c1fc91636205b4a25d2620	patch
https://git.kernel.org/stable/c/4e75e222d397c6752b229ed72fc4644c8c36ecde	patch
https://git.kernel.org/stable/c/e3425674ff68dc521c57c6eabad0cbd20a027d85	patch
https://git.kernel.org/stable/c/357c64ef1ef39b1e7cd91ab6bdd304d043702c83	patch
https://git.kernel.org/stable/c/91811a31b68d3765b3065f4bb6d7d6d84a7cfc9f	patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.