CVE-2022-49053
High
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not take refcount properly and just returns page pointer. When tcmu_try_get_data_page() returns, the returned page may have been freed by tcmu_blocks_release(). We need to get_page() under cmdr_lock to avoid concurrent tcmu_blocks_release().
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedFeb 26, 2025
First seenFeb 26, 2025
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel4.14.276, 4.19.239, 5.4.190, 5.10.112, 5.15.35, 5.17.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 4.14.276, 4.15 ≤ v < 4.19.239, 4.20 ≤ v < 5.4.190, 5.5 ≤ v < 5.10.112, 5.11 ≤ v < 5.15.35, 5.16 ≤ v < 5.17.4, 5.18 | 4.14.276, 4.19.239, 5.4.190, 5.10.112, 5.15.35, 5.17.4 |
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