CVE-2022-48740
High
Description
In the Linux kernel, the following vulnerability has been resolved: selinux: fix double free of cond_list on error paths On error path from cond_read_list() and duplicate_policydb_cond_list() the cond_list_destroy() gets called a second time in caller functions, resulting in NULL pointer deref. Fix this by resetting the cond_list_len to 0 in cond_list_destroy(), making subsequent calls a noop. Also consistently reset the cond_list pointer to NULL after freeing. [PM: fix line lengths in the description]
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedJun 20, 2024
First seenJun 20, 2024
How to fix
Update
- linux linux_kernel5.10.99, 5.15.22, 5.16.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.7 ≤ v < 5.10.99, 5.11 ≤ v < 5.15.22, 5.16 ≤ v < 5.16.8, 5.17 | 5.10.99, 5.15.22, 5.16.8 |
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