CVE-2022-49053
unknown
CVSS v3
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CVSS v2
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VIR risk
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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().
Predictions
Exploit likelihood
20%
Patch ETA
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Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2022-49053
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2022-49053.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 5.17.6-1 |
| debian | bullseye | fixed | 5.10.113-1 |
| debian | forky | fixed | 5.17.6-1 |
| debian | sid | fixed | 5.17.6-1 |
| debian | trixie | fixed | 5.17.6-1 |
References
Verify integrity in audit chain (admin only). AS-IS.