CVE-2024-39475

fbdev: savage: Handle err return when savagefb_check_var failed

MEDIUM
5.5
CVSS Score
Published: July 5, 2024 at 06:55 AM UTC
Updated: June 17, 2026 at 07:41 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: fbdev: savage: Handle err return when savagefb_check_var failed The commit 04e5eac8f3ab("fbdev: savage: Error out if pixclock equals zero") checks the value of pixclock to avoid divide-by-zero error. However the function savagefb_probe doesn't handle the error return of savagefb_check_var. When pixclock is 0, it will cause divide-by-zero error.

Affected

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

v ≥ 6.7.74.19 ≤ v < 4.19.3164.19.308 ≤ v < 4.19.3165.10 ≤ v < 5.10.2195.10.211 ≤ v < 5.10.2195.15 ≤ v < 5.15.1615.15.150 ≤ v < 5.15.1615.4 ≤ v < 5.4.2785.4.270 ≤ v < 5.4.2786.1 ≤ v < 6.1.946.1.80 ≤ v < 6.1.946.6 ≤ v < 6.6.346.6.19 ≤ v < 6.6.346.7.7 ≤ v < 6.86.8 ≤ v < 6.106.8 ≤ v < 6.9.56.9 ≤ v < 6.9.5224453de8505aede1890f007be973925a3edf6a14.19.3084e5eac8f3ab2ff52fa191c187a46d4fdbc1e2885.10.2115.15.1505.4.270512ee6d6041e007ef5bf200c6e388e172a2c5b246.1.806.6.196.7.76.870398d32c5f3ab0e890374904ad94551c76aec484dce0f6a4cc5b7bfd7242ef9290db8ac1dd77ff8c54acf33e5adaad6374bf3ec1e3aff0591cc8e1a9ca4e80d23474f90841251f4ac0d941fa337a01bc3c2e58d73b28b9a8789fca84778ee165a72d13
Vendor states this is fixed in 32f92b0078ebf79dbe4827288e0acb50d89d3d5b (fixed)
Vendor states this is fixed in 4b2c67e30b4e1d2ae19dba8b8e8f3b5fd3cf8089 (fixed)
Vendor states this is fixed in 5f446859bfa46df0ffb34149499f48a2c2d8cd95 (fixed)
Vendor states this is fixed in 6ad959b6703e2c4c5d7af03b4cfd5ff608036339 (fixed)
Vendor states this is fixed in 86435f39c18967cdd937d7a49ba539cdea7fb547 (fixed)
Vendor states this is fixed in b8385ff814ca4cb7e63789841e6ec2a14c73e1e8 (fixed)
Vendor states this is fixed in be754cbd77eaf2932408a4e18532e4945274a5c7 (fixed)
Vendor states this is fixed in edaa57480b876e8203b51df7c3d14a51ea6b09e3 (fixed)
Vendor states this is fixed in 4.19.316 (unaffected)
Vendor states this is fixed in 5.10.219 (unaffected)
Vendor states this is fixed in 5.15.161 (unaffected)
Vendor states this is fixed in 5.4.278 (unaffected)
Vendor states this is fixed in 6.1.94 (unaffected)
Vendor states this is fixed in 6.10 (unaffected)
Vendor states this is fixed in 6.6.34 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)
Vendor states this is fixed in 6.9.5 (unaffected)

References (8)

Mailing ListPatch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/32f92b0078ebf79dbe4827288e0acb50d89d3d5b
Mailing ListPatch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4b2c67e30b4e1d2ae19dba8b8e8f3b5fd3cf8089
Mailing ListPatch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5f446859bfa46df0ffb34149499f48a2c2d8cd95
Mailing ListPatch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6ad959b6703e2c4c5d7af03b4cfd5ff608036339
Mailing ListPatch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/86435f39c18967cdd937d7a49ba539cdea7fb547
Mailing ListPatch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b8385ff814ca4cb7e63789841e6ec2a14c73e1e8
Mailing ListPatch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/be754cbd77eaf2932408a4e18532e4945274a5c7
Mailing ListPatch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/edaa57480b876e8203b51df7c3d14a51ea6b09e3

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

StatusMODIFIED
CWE
CWE-369

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