Tracker / CVE-2021-47340
CVE-2021-47340
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: jfs: fix GPF in diFree Avoid passing inode with JFS_SBI(inode->i_sb)->ipimap == NULL to diFree()[1]. GFP will appear: struct inode *ipimap = JFS_SBI(ip->i_sb)->ipimap; struct inomap *imap = JFS_IP(ipimap)->i_imap; JFS_IP() will return invalid pointer when ipimap == NULL Call Trace: diFree+0x13d/0x2dc0 fs/jfs/jfs_imap.c:853 [1] jfs_evict_inode+0x2c9/0x370 fs/jfs/inode.c:154 evict+0x2ed/0x750 fs/inode.c:578 iput_final fs/inode.c:1654 [inline] iput.part.0+0x3fe/0x820 fs/inode.c:1680 iput+0x58/0x70 fs/inode.c:1670
Affected products and versions
| linux | linux_kernel · … → 4.4.276 |
|---|---|
| linux | linux_kernel · 4.10 → 4.14.240 |
| linux | linux_kernel · 4.15 → 4.19.198 |
| linux | linux_kernel · 4.20 → 5.4.133 |
| linux | linux_kernel · 4.5 → 4.9.276 |
| linux | linux_kernel · 5.11 → 5.12.18 |
| linux | linux_kernel · 5.13 → 5.13.3 |
| linux | linux_kernel · 5.5 → 5.10.51 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.