جزئیات آسیبپذیری
CVE-2026-63816
f2fs: atomic: fix UAF issue on f2fs_inode_info.atomic_inode
شرح رسمی (انگلیسی)
In the Linux kernel, the following vulnerability has been resolved: f2fs: atomic: fix UAF issue on f2fs_inode_info.atomic_inode - ioctl(F2FS_IOC_GARBAGE_COLLECT_RANGE) - shrink - f2fs_gc - gc_data_segment - ra_data_block(cow_inode) - mapping = F2FS_I(inode)->atomic_inode->i_mapping : f2fs_is_cow_file(cow_inode) is true - f2fs_evict_inode(atomic_inode) - clear_inode_flag(fi->cow_inode, FI_COW_FILE) - F2FS_I(fi->cow_inode)->atomic_inode = NULL ... - truncate_inode_pages_final(atomic_inode) - f2fs_grab_cache_folio(mapping) : create folio in atomic_inode->mapping - clear_inode(atomic_inode) - BUG_ON(atomic_inode->i_data.nrpages) We need to add a reference on fi->atomic_inode before using its mapping field during garbage collection, otherwise, it will cause UAF issue.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 7.8بالا | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
محصولات آسیبپذیر
| فروشنده | محصول | نسخهها | منبع |
|---|---|---|---|
| Linux | Linux | 5.19 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 6db52f1944417c2601182a591a704e2f119c5215 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3db1de0e582c358dd013f3703cd55b5fe4076436 ≤ v < a499f77c06050a28c897bdbd86cd2f0721ae0743 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3db1de0e582c358dd013f3703cd55b5fe4076436 ≤ v < a805fec35c201c59643ddcde713bce4051c8ee27 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3db1de0e582c358dd013f3703cd55b5fe4076436 ≤ v < 7d3ae21783e5914c1761ac7d63f882d3d70800e9 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3db1de0e582c358dd013f3703cd55b5fe4076436 ≤ v < e0288584baa5dc41df4a829a023c4c1b33fe53d7 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3db1de0e582c358dd013f3703cd55b5fe4076436 ≤ v < 56038756aae68312df00d4aa1d97e51ef3aca725 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.18.18 ≤ v < 5.19 | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۵- https://git.kernel.org/stable/c/7d3ae21783e5914c1761ac7d63f882d3d70800e9
- https://git.kernel.org/stable/c/56038756aae68312df00d4aa1d97e51ef3aca725
- https://git.kernel.org/stable/c/a499f77c06050a28c897bdbd86cd2f0721ae0743
- https://git.kernel.org/stable/c/a805fec35c201c59643ddcde713bce4051c8ee27
- https://git.kernel.org/stable/c/e0288584baa5dc41df4a829a023c4c1b33fe53d7
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۴/۲۸
- آخرین بهروزرسانی
- ۱۴۰۵/۰۵/۲۶
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- Linux
پیشبینی بهرهبرداری (EPSS)
ضعفها (CWE)
- —