CVE-2023-53373
High
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: seqiv - Handle EBUSY correctly As it is seqiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request. However, as the caller of seqiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger a use-after-free.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedSep 18, 2025
First seenSep 18, 2025
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.25 ≤ v < 4.14.308, 4.15 ≤ v < 4.19.276, 4.20 ≤ v < 5.4.235, 5.5 ≤ v < 5.10.173, 5.11 ≤ v < 5.15.99, 5.16 ≤ v < 6.1.16, 6.2 ≤ v < 6.2.3 | 4.14.308, 4.19.276, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3 |
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