Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bf86bcdb40123ee99669ee91b67e023669433a1a before 453e4b0c84d0db1454ff0adf655d91179e6fca3a; affected bf86bcdb40123ee99669ee91b67e023669433a1a before 7957635c679e8a01147163a3a4a1f16e1210fa03; affected bf86bcdb40123ee99669ee91b67e023669433a1a before 7193407bc4457212fa38ec3aff9c640e63a8dbef; affected bf86bcdb40123ee99669ee91b67e023669433a1a before f7e3f852a42d7cd8f1af2c330d9d153e30c8adcf |
| Linux / Linux | affected 6.11; unaffected 0 before 6.11; unaffected 6.12.63 through 6.12.*; unaffected 6.17.13 through 6.17.*; unaffected 6.18.2 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.