CVSS 5.5 · Medium EPSS 0,22%
Kerentanan Missing Release of Memory after Effective Lifetime pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: capabilities: fix potential memleak on error path from vfs_getxattr_alloc() In cap_inode_getsecurity(), we will use vfs_getxattr_alloc() to complete the memory allocation of tmpbuf, if we have completed the memory allocation of tmpbuf, but failed to call handler->get(...), there will be a memleak in below logic: |-- ret = (int)vfs_getxattr_alloc(mnt_userns, ...) | /* ^^^ alloc for tmpbuf */ |-- value = krealloc(*xattr_value, error + 1, flags) | /* ^^^ alloc memory */ |-- error = handler->get(handler, ...) | /* error! */ |-- *xattr_value = value | /* xattr_value is &tmpbuf (memory leak!) */ So we will try to free(tmpbuf) after vfs_getxattr_alloc() fails to fix it. [PM: subject line and backtrace tweaks]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 4.14 hingga sebelum 4.14.299 |
| linux | linux kernel | Versi 4.15 hingga sebelum 4.19.265 |
| linux | linux kernel | Versi 4.20 hingga sebelum 5.4.224 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.154 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.78 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.0.8 |
| linux | linux kernel | Versi 6.1 rc1 |
| linux | linux kernel | Versi 6.1 rc2 |
| linux | linux kernel | Versi 6.1 rc3 |