CVE-2024-26816

x86, relocs: Ignore relocations in .notes section

MEDIUM

5.5

CVSS Score

Published: April 10, 2024 at 01:53 PM UTC

Updated: October 15, 2026 at 01:17 AM UTC

3 products affected across 3 vendorsLinux KernelDebian LinuxSIMATIC S7-1500 TM MFP

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: x86, relocs: Ignore relocations in .notes section When building with CONFIG_XEN_PV=y, .text symbols are emitted into the .notes section so that Xen can find the "startup_xen" entry point. This information is used prior to booting the kernel, so relocations are not useful. In fact, performing relocations against the .notes section means that the KASLR base is exposed since /sys/kernel/notes is world-readable. To avoid leaking the KASLR base without breaking unprivileged tools that are expecting to read /sys/kernel/notes, skip performing relocations in the .notes section. The values readable in .notes are then identical to those found in System.map.

Affected

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

Debian Linux · Debiandrupal

95%

10.0

Linux Kernel · Linux

95%

2.6.23 ≤ v < 4.19.3114.20 ≤ v < 5.4.2735.11 ≤ v < 5.15.1535.16 ≤ v < 6.1.835.5 ≤ v < 5.10.2146.2 ≤ v < 6.6.236.7 ≤ v < 6.7.116.8 ≤ v < 6.8.26.8.3 ≤ v ≤ 6.8.122.6.235ead97c84fa7d63a6a7a2f4e9f18f452bd109045

Vendor states this is fixed in 13edb509abc91c72152a11baaf0e7c060a312e03 (fixed)

Vendor states this is fixed in 47635b112a64b7b208224962471e7e42f110e723 (fixed)

Vendor states this is fixed in 52018aa146e3cf76569a9b1e6e49a2b7c8d4a088 (fixed)

Vendor states this is fixed in 5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40 (fixed)

Vendor states this is fixed in a4e7ff1a74274e59a2de9bb57236542aa990d20a (fixed)

Vendor states this is fixed in aaa8736370db1a78f0e8434344a484f9fd20be3b (fixed)

Vendor states this is fixed in ae7079238f6faf1b94accfccf334e98b46a0c0aa (fixed)

Vendor states this is fixed in af2a9f98d884205145fd155304a6955822ccca1c (fixed)

Vendor states this is fixed in c7cff9780297d55d97ad068b68b703cfe53ef9af (fixed)

Vendor states this is fixed in 2.6.23 (unaffected)

Vendor states this is fixed in 4.19.311 (unaffected)

Vendor states this is fixed in 5.10.214 (unaffected)

Vendor states this is fixed in 5.15.153 (unaffected)

Vendor states this is fixed in 5.4.273 (unaffected)

Vendor states this is fixed in 6.1.83 (unaffected)

Vendor states this is fixed in 6.6.23 (unaffected)

Vendor states this is fixed in 6.7.11 (unaffected)

Vendor states this is fixed in 6.8.2 (unaffected)

Vendor states this is fixed in 6.9 (unaffected)

SIMATIC S7-1500 TM MFP · Siemens

60%

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references