CVE-2024-26818

tools/rtla: Fix clang warning about mount_point var size

MEDIUM
5.5
CVSS Score
Published: April 17, 2024 at 09:43 AM UTC
Updated: June 17, 2026 at 07:18 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: tools/rtla: Fix clang warning about mount_point var size clang is reporting this warning: $ make HOSTCC=clang CC=clang LLVM_IAS=1 [...] clang -O -g -DVERSION=\"6.8.0-rc3\" -flto=auto -fexceptions -fstack-protector-strong -fasynchronous-unwind-tables -fstack-clash-protection -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS $(pkg-config --cflags libtracefs) -c -o src/utils.o src/utils.c src/utils.c:548:66: warning: 'fscanf' may overflow; destination buffer in argument 3 has size 1024, but the corresponding specifier may require size 1025 [-Wfortify-source] 548 | while (fscanf(fp, "%*s %" STR(MAX_PATH) "s %99s %*s %*d %*d\n", mount_point, type) == 2) { | ^ Increase mount_point variable size to MAX_PATH+1 to avoid the overflow.

Affected

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

6.5 ≤ v < 6.6.186.5 ≤ v < 6.7.66.5 ≤ v < 6.86.7 ≤ v < 6.7.66.8 rc16.8 rc26.8 rc36.8 rc4a957cbc02531a23beeac6dd9e751f8d4dadaf7a9
Vendor states this is fixed in 30369084ac6e27479a347899e74f523e6ca29b89 (fixed)
Vendor states this is fixed in 6bdd43f62ab3bb5a306af7f0ab857af45777f5a8 (fixed)
Vendor states this is fixed in 8a585914c266dc044f53b5c83c170f79b45fcf9a (fixed)
Vendor states this is fixed in 6.5 (unaffected)
Vendor states this is fixed in 6.6.18 (unaffected)
Vendor states this is fixed in 6.7.6 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/30369084ac6e27479a347899e74f523e6ca29b89
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6bdd43f62ab3bb5a306af7f0ab857af45777f5a8
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8a585914c266dc044f53b5c83c170f79b45fcf9a

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
NVD-CWE-noinfo

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