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CVE-2022-49387

watchdog: rzg2l_wdt: Fix 32bit overflow issue

MEDIUM
5.5
CVSS Score
Published: February 26, 2025 at 02:11 AM UTC
Updated: June 17, 2026 at 05:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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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: watchdog: rzg2l_wdt: Fix 32bit overflow issue The value of timer_cycle_us can be 0 due to 32bit overflow. For eg:- If we assign the counter value "0xfff" for computing maxval. This patch fixes this issue by appending ULL to 1024, so that it is promoted to 64bit. This patch also fixes the warning message, 'watchdog: Invalid min and max timeout values, resetting to 0!'.

Affected

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

Linux Kernel· Linux
95%
5.17 ≤ v < 5.17.155.17 ≤ v < 5.18.45.17 ≤ v < 5.195.18 ≤ v < 5.18.42cbc5cd0b55fa2310cc557c77b0665f5e00272de5.17
Vendor states this is fixed in b95a47667d34e76c2c9013f8e3b1e5039a5a0b76 (fixed)
Vendor states this is fixed in e07b9fa0dc32b492de85528caaf9f0c605d8424f (fixed)
Vendor states this is fixed in ea2949df22a533cdf75e4583c00b1ce94cd5a83b (fixed)
Vendor states this is fixed in 5.17 (unaffected)
Vendor states this is fixed in 5.17.15 (unaffected)
Vendor states this is fixed in 5.18.4 (unaffected)
Vendor states this is fixed in 5.19 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b95a47667d34e76c2c9013f8e3b1e5039a5a0b76
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e07b9fa0dc32b492de85528caaf9f0c605d8424f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ea2949df22a533cdf75e4583c00b1ce94cd5a83b

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.5MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-190

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