Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
b72053072c0bbe9f1cdfe2ffa3c201c185da2201 to < 4bc4272e2506941c3f3d4fb8b0c659ee814dcf6faffectedb72053072c0bbe9f1cdfe2ffa3c201c185da2201 to < cc4d21d9492db4e534d3e01253cf885c90dd2a8baffectedb72053072c0bbe9f1cdfe2ffa3c201c185da2201 to < 64cf2a39202ca2d9df5ee70eb310b6141ce2b8edaffectedb72053072c0bbe9f1cdfe2ffa3c201c185da2201 to < 80f5bfbb80ea1615290dbc24f49d3d8c86db58feaffectedb72053072c0bbe9f1cdfe2ffa3c201c185da2201 to < 652039ba477c9a4ab43740cf2cb0d068d53508c2affectedb72053072c0bbe9f1cdfe2ffa3c201c185da2201 to < afe53ea9b378c376101d99d216f13b6256f75189affectedb72053072c0bbe9f1cdfe2ffa3c201c185da2201 to < 26e197b7f9240a4ac301dd0ad520c0c697c2ea7daffected
Linux Linux
Default version status: affected
5.5affected0 to < 5.5unaffected5.10.227 to ≤ 5.10.*unaffected5.15.168 to ≤ 5.15.*unaffected6.1.113 to ≤ 6.1.*unaffected6.6.54 to ≤ 6.6.*unaffected6.10.13 to ≤ 6.10.*unaffected6.11.2 to ≤ 6.11.*unaffected6.12 to ≤ *unaffected
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 ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html ↗