Description
In the Linux kernel, the following vulnerability has been resolved: block: fix memory leak in __blkdev_issue_zero_pages Move the fatal signal check before bio_alloc() to prevent a memory leak when BLKDEV_ZERO_KILLABLE is set and a fatal signal is pending. Previously, the bio was allocated before checking for a fatal signal. If a signal was pending, the code would break out of the loop without freeing or chaining the just-allocated bio, causing a memory leak. This matches the pattern already used in __blkdev_issue_write_zeroes() where the signal check precedes the allocation.
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
bf86bcdb40123ee99669ee91b67e023669433a1a to < 453e4b0c84d0db1454ff0adf655d91179e6fca3aaffectedbf86bcdb40123ee99669ee91b67e023669433a1a to < 7957635c679e8a01147163a3a4a1f16e1210fa03affectedbf86bcdb40123ee99669ee91b67e023669433a1a to < 7193407bc4457212fa38ec3aff9c640e63a8dbefaffectedbf86bcdb40123ee99669ee91b67e023669433a1a to < f7e3f852a42d7cd8f1af2c330d9d153e30c8adcfaffected
Linux Linux
Default version status: affected
6.11affected0 to < 6.11unaffected6.12.63 to ≤ 6.12.*unaffected6.17.13 to ≤ 6.17.*unaffected6.18.2 to ≤ 6.18.*unaffected6.19 to ≤ *unaffected