CVE-2022-50333
BaseFortify
Publication date: 2025-09-15
Last updated on: 2025-12-04
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | to 4.9.337 (exc) |
| linux | linux_kernel | From 4.10 (inc) to 4.14.303 (exc) |
| linux | linux_kernel | From 4.15 (inc) to 4.19.270 (exc) |
| linux | linux_kernel | From 4.20 (inc) to 5.4.229 (exc) |
| linux | linux_kernel | From 5.5 (inc) to 5.10.163 (exc) |
| linux | linux_kernel | From 5.11 (inc) to 5.15.86 (exc) |
| linux | linux_kernel | From 5.16 (inc) to 6.0.16 (exc) |
| linux | linux_kernel | From 6.1 (inc) to 6.1.2 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-125 | The product reads data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a flaw in the Linux kernel's JFS filesystem code where a shift operation goes out-of-bounds in the dbDiscardAG function. It occurs because the kernel does not properly guard the dbMount when handling inputs, allowing malformed data (rubbish) fed by syzbot into the bmap descriptor to cause issues.
How can this vulnerability impact me? :
The vulnerability could lead to unexpected behavior or crashes in the Linux kernel when processing JFS filesystem operations, potentially causing system instability or denial of service due to improper handling of malformed inputs.
What immediate steps should I take to mitigate this vulnerability?
Apply the patch that fixes the shift-out-of-bounds issue in the jfs filesystem code of the Linux kernel, specifically the fix for dbDiscardAG as described. This update guards against invalid input to the bmap descriptor and addresses the vulnerability reported by syzbot.