CVE-2024-38667 — Out-of-bounds Write in Linux
Severity
7.8HIGHNVD
OSV8.8OSV5.5
EPSS
0.0%
top 90.23%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 24
Latest updateJan 20
Description
In the Linux kernel, the following vulnerability has been resolved:
riscv: prevent pt_regs corruption for secondary idle threads
Top of the kernel thread stack should be reserved for pt_regs. However
this is not the case for the idle threads of the secondary boot harts.
Their stacks overlap with their pt_regs, so both may get corrupted.
Similar issue has been fixed for the primary hart, see c7cdd96eca28
("riscv: prevent stack corruption by reserving task_pt_regs(p) early").
However that fix w…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9