CVE-2024-35983 json
bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS
published 2024-05-20 2 y ago modified 2026-10-15 25 d ago also EUVD-2024-35701
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 14%
- public exploits
- 0
- none known
Summary
In the Linux kernel, the following vulnerability has been resolved:
bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS
bits_per() rounds up to the next power of two when passed a power of two. This causes crashes on some machines and configurations.
Patch / fix
- Linux Linux 5.4.275, 5.10.216, 5.15.158, 6.1.90, 6.6.30, 6.8, 6.8.9
- Siemens RUGGEDCOM RST2428P V3.1
- Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family V3.1
- Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1.1
- linux Debian 12 6.1.90-1
- linux Debian 14, Debian 13 6.8.9-1
debian advisories DEBIAN-CVE-2024-35983
- linux Ubuntu 24.04 LTS 6.8.0-40.40
- linux-aws Ubuntu 24.04 LTS 6.8.0-1013.14
- linux-gcp Ubuntu 24.04 LTS 6.8.0-1012.13
- linux-gke Ubuntu 24.04 LTS 6.8.0-1008.11
- linux-ibm Ubuntu 24.04 LTS 6.8.0-1010.10
- linux-azure Ubuntu 24.04 LTS 6.8.0-1012.14
- linux-raspi Ubuntu 24.04 LTS 6.8.0-1009.10
- linux-riscv Ubuntu 24.04 LTS 6.8.0-40.40.1
ubuntu advisories UBUNTU-CVE-2024-35983
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- kernel RHEL 9 5.14.0-503.11.1.el9_5
- rv RHEL 9 5.14.0-503.11.1.el9_5
- perf RHEL 9 5.14.0-503.11.1.el9_5
- rtla RHEL 9 5.14.0-503.11.1.el9_5
- bpftool RHEL 9 7.4.0-503.11.1.el9_5
- libperf RHEL 9 5.14.0-503.11.1.el9_5
- kernel-rt RHEL 9 5.14.0-503.11.1.el9_5
- kernel-64k RHEL 9 5.14.0-503.11.1.el9_5
red hat advisories RHSA-2024:9315
- git.kernel.org/stable/c/d34a516f2635090d36a306f84573e8de3d7374ce commit
- git.kernel.org/stable/c/66297b2ceda841f809637731d287bda3a93b49d8 commit
- git.kernel.org/stable/c/93ba36238db6a74a82feb3dc476e25ea424ad630 commit
- git.kernel.org/stable/c/9b7c5004d7c5ae062134052a85290869a015814c commit
- git.kernel.org/stable/c/15aa09d6d84629eb5296de30ac0aa19a33512f16 commit
- git.kernel.org/stable/c/ebfe41889b762f1933c6762f6624b9724a25bee0 commit
- git.kernel.org/stable/c/5af385f5f4cddf908f663974847a4083b2ff2c79 commit
- lists.debian.org/debian-lts-announce/2024/06/msg00017.html patch
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2024-35983 updated cvss 5.5
kernel: bounds: Use the right number of bits for power-of-two CONFIG_NR_CPUS
-
Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 moreaffected: workaround, no fix planned “Out of support scope”
-
Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 moreaffected: workaround, no fix planned “Will not fix”
-
Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 moreaffected: workaround, no fix available
-
Red Hat CodeReady Linux Builder (v. 9) libperf 5.14.0-503.11.1.el9_5, kernel-debuginfo-common-s390x 5.14.0-503.11.1.el9_5, kernel-debuginfo-common-x86_64 5.14.0-503.11.1.el9_5, kernel-debuginfo-common-aarch64 5.14.0-503.11.1.el9_5, kernel-debuginfo-common-ppc64le 5.14.0-503.11.1.el9_5 Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-503.11.1.el9_5, perf 5.14.0-503.11.1.el9_5, rtla 5.14.0-503.11.1.el9_5, kernel-devel-matched 5.14.0-503.11.1.el9_5, kernel-64k-devel-matched 5.14.0-503.11.1.el9_5, kernel-debug-devel-matched 5.14.0-503.11.1.el9_5, +6 more Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.4.0-503.11.1.el9_5, kernel 5.14.0-503.11.1.el9_5, kernel-64k 5.14.0-503.11.1.el9_5, kernel-core 5.14.0-503.11.1.el9_5, kernel-tools 5.14.0-503.11.1.el9_5, python3-perf 5.14.0-503.11.1.el9_5, +29 more Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-503.11.1.el9_5, kernel-rt-core 5.14.0-503.11.1.el9_5, kernel-rt-modules 5.14.0-503.11.1.el9_5, kernel-rt-debug-core 5.14.0-503.11.1.el9_5, kernel-rt-modules-core 5.14.0-503.11.1.el9_5, kernel-rt-debug-modules 5.14.0-503.11.1.el9_5, +4 more Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-503.11.1.el9_5, kernel-rt-kvm 5.14.0-503.11.1.el9_5, kernel-rt-core 5.14.0-503.11.1.el9_5, kernel-rt-modules 5.14.0-503.11.1.el9_5, kernel-rt-debug-kvm 5.14.0-503.11.1.el9_5, kernel-rt-debug-core 5.14.0-503.11.1.el9_5, +6 morefixed: vendor fix RHSA-2024:9315
-
Red Hat CodeReady Linux Builder (v. 9) kernel-cross-headers 5.14.0-503.11.1.el9_5 Red Hat Enterprise Linux AppStream (v. 9) kernel-headers 5.14.0-503.11.1.el9_5not affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
cisa ICSA-24-102-01 updated cvss 5.5
Siemens SIMATIC S7-1500 TM MFP
-
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystemaffected: mitigation, no fix available
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
cisa ICSA-25-226-15 updated cvss 5.5
Siemens SINEC OS
-
Siemens RUGGEDCOM RST2428P (6GK6242-6PA00) < 3.1 Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family < 3.1affected: fixed in V3.1 support.industry.siemens.com
-
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 familynot affected
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Linux Linux
- Siemens RUGGEDCOM RST2428P
- Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family
- Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family
- Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Classification
- Technology feeds
References
-
git.kernel.org
/stable/c/d34a516f2635090d36a306f84573e8de3d7374ce
patch
-
git.kernel.org
/stable/c/66297b2ceda841f809637731d287bda3a93b49d8
patch
-
git.kernel.org
/stable/c/93ba36238db6a74a82feb3dc476e25ea424ad630
patch
-
git.kernel.org
/stable/c/9b7c5004d7c5ae062134052a85290869a015814c
patch
-
git.kernel.org
/stable/c/15aa09d6d84629eb5296de30ac0aa19a33512f16
patch
-
git.kernel.org
/stable/c/ebfe41889b762f1933c6762f6624b9724a25bee0
patch
-
git.kernel.org
/stable/c/5af385f5f4cddf908f663974847a4083b2ff2c79
patch
-
lists.debian.org
/debian-lts-announce/2024/06/msg00017.html
patch
- cert-portal.siemens.com /productcert/html/ssa-265688.html
- cert-portal.siemens.com /productcert/html/ssa-613116.html
Sources
- CVE List CVE-2024-35983
- NVD CVE-2024-35983
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.