Tracker / CVE-2024-44947
CVE-2024-44947
In the Linux kernel, the following vulnerability has been resolved: fuse: Initialize beyond-EOF page contents before setting uptodate fuse_notify_store(), unlike fuse_do_readpage(), does not enable page zeroing (because it can be used to change partial page contents). So fuse_notify_store() must be more careful to fully initialize page contents (including parts of the page that are beyond end-of-file) before marking the page uptodate. The current code can leave beyond-EOF page contents uninitialized, which makes these uninitialized page contents visible to userspace via mmap(). This is an information leak, but only affects systems which do not enable init-on-alloc (via CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y or the corresponding kernel command line parameter).
Prodotti e versioni affette
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 2.6.36 → 4.19.321 |
| linux | linux_kernel · 4.20 → 5.4.283 |
| linux | linux_kernel · 5.11 → 5.15.166 |
| linux | linux_kernel · 5.16 → 6.1.107 |
| linux | linux_kernel · 5.5 → 5.10.225 |
| linux | linux_kernel · 6.2 → 6.6.48 |
| linux | linux_kernel · 6.7 → 6.10.7 |