CVE-2022-48703
In the Linux kernel, the following vulnerability has been resolved: thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR In some case, the GDDV returns a package with a buffer which has zero length.
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR In some case, the GDDV returns a package with a buffer which has zero length. It causes that kmemdup() returns ZERO_SIZE_PTR (0x10). Then the data_vault_read() got NULL point dereference problem when accessing the 0x10 value in data_vault. [ 71.024560] BUG: kernel NULL pointer dereference, address: 0000000000000010 This patch uses ZERO_OR_NULL_PTR() for checking ZERO_SIZE_PTR or NULL value in data_vault.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/39d5137085a6c37ace4680ee4d24020a4a03e7dc
- https://git.kernel.org/stable/c/722588f17fd3d3a127e50718ec2caf22bd7e9daa
- https://git.kernel.org/stable/c/7931e28098a4c1a2a6802510b0cbe57546d2049dPatch
- https://git.kernel.org/stable/c/dae42083b045a4ddf71c57cf350cb2412b5915c2Patch
- https://git.kernel.org/stable/c/7931e28098a4c1a2a6802510b0cbe57546d2049dPatch
- https://git.kernel.org/stable/c/dae42083b045a4ddf71c57cf350cb2412b5915c2Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.