Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: block: fix potential invalid pointer dereference in blk_add_partition The blk_add_partition() function initially used a single if-condition (IS_ERR(part)) to check for errors when adding a partition. This was modified to handle the specific case of -ENXIO separately, allowing the function to proceed without logging the error in this case. However, this change unintentionally left a path where md_autodetect_dev() could be called without confirming that part is a valid pointer. This commit separates the error handling logic by splitting the initial if-condition, improving code readability and handling specific error scenarios explicitly. The function now distinguishes the general error case from -ENXIO without altering the existing behavior of md_autodetect_dev() calls.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b72053072c0bbe9f1cdfe2ffa3c201c185da2201 before 4bc4272e2506941c3f3d4fb8b0c659ee814dcf6f; affected b72053072c0bbe9f1cdfe2ffa3c201c185da2201 before cc4d21d9492db4e534d3e01253cf885c90dd2a8b; affected b72053072c0bbe9f1cdfe2ffa3c201c185da2201 before 64cf2a39202ca2d9df5ee70eb310b6141ce2b8ed; affected b72053072c0bbe9f1cdfe2ffa3c201c185da2201 before 80f5bfbb80ea1615290dbc24f49d3d8c86db58fe; affected b72053072c0bbe9f1cdfe2ffa3c201c185da2201 before 652039ba477c9a4ab43740cf2cb0d068d53508c2; affected b72053072c0bbe9f1cdfe2ffa3c201c185da2201 before afe53ea9b378c376101d99d216f13b6256f75189; affected b72053072c0bbe9f1cdfe2ffa3c201c185da2201 before 26e197b7f9240a4ac301dd0ad520c0c697c2ea7d |
| Linux / Linux | affected 5.5; unaffected 0 before 5.5; unaffected 5.10.227 through 5.10.*; unaffected 5.15.168 through 5.15.*; unaffected 6.1.113 through 6.1.*; unaffected 6.6.54 through 6.6.*; unaffected 6.10.13 through 6.10.*; unaffected 6.11.2 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/4bc4272e2506941c3f3d4fb8b0c659ee814dcf6f
- https://git.kernel.org/stable/c/cc4d21d9492db4e534d3e01253cf885c90dd2a8b
- https://git.kernel.org/stable/c/64cf2a39202ca2d9df5ee70eb310b6141ce2b8ed
- https://git.kernel.org/stable/c/80f5bfbb80ea1615290dbc24f49d3d8c86db58fe
- https://git.kernel.org/stable/c/652039ba477c9a4ab43740cf2cb0d068d53508c2
- https://git.kernel.org/stable/c/afe53ea9b378c376101d99d216f13b6256f75189
- https://git.kernel.org/stable/c/26e197b7f9240a4ac301dd0ad520c0c697c2ea7d
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
No English description supplied.