Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid out-of-boundary access in devs.path - touch /mnt/f2fs/012345678901234567890123456789012345678901234567890123 - truncate -s $((1024*1024*1024)) \ /mnt/f2fs/012345678901234567890123456789012345678901234567890123 - touch /mnt/f2fs/file - truncate -s $((1024*1024*1024)) /mnt/f2fs/file - mkfs.f2fs /mnt/f2fs/012345678901234567890123456789012345678901234567890123 \ -c /mnt/f2fs/file - mount /mnt/f2fs/012345678901234567890123456789012345678901234567890123 \ /mnt/f2fs/loop [16937.192225] F2FS-fs (loop0): Mount Device [ 0]: /mnt/f2fs/012345678901234567890123456789012345678901234567890123\xff\x01, 511, 0 - 3ffff [16937.192268] F2FS-fs (loop0): Failed to find devices If device path length equals to MAX_PATH_LEN, sbi->devs.path[] may not end up w/ null character due to path array is fully filled, So accidently, fields locate after path[] may be treated as part of device path, result in parsing wrong device path. struct f2fs_dev_info { ... char path[MAX_PATH_LEN]; ... }; Let's add one byte space for sbi->devs.path[] to store null character of device path string.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3c62be17d4f562f43fe1d03b48194399caa35aa5 before dc0172c74bd9edaee7bea2ebb35f3dbd37a8ae80; affected 3c62be17d4f562f43fe1d03b48194399caa35aa5 before 1cf1ff15f262e8baf12201b270b6a79f9d119b2d; affected 3c62be17d4f562f43fe1d03b48194399caa35aa5 before 666b7cf6ac9aa074b8319a2b68cba7f2c30023f0; affected 3c62be17d4f562f43fe1d03b48194399caa35aa5 before 3466721f06edff834f99d9f49f23eabc6b2cb78e; affected 3c62be17d4f562f43fe1d03b48194399caa35aa5 before 345fc8d1838f3f8be7c8ed08d86a13dedef67136; affected 3c62be17d4f562f43fe1d03b48194399caa35aa5 before 70849d33130a2cf1d6010069ed200669c8651fbd; affected 3c62be17d4f562f43fe1d03b48194399caa35aa5 before 755427093e4294ac111c3f9e40d53f681a0fbdaa; affected 3c62be17d4f562f43fe1d03b48194399caa35aa5 before 1b1efa5f0e878745e94a98022e8edc675a87d78e; affected 3c62be17d4f562f43fe1d03b48194399caa35aa5 before 5661998536af52848cc4d52a377e90368196edea |
| Linux / Linux | affected 4.10; unaffected 0 before 4.10; unaffected 5.4.297 through 5.4.*; unaffected 5.10.241 through 5.10.*; unaffected 5.15.190 through 5.15.*; unaffected 6.1.148 through 6.1.*; unaffected 6.6.102 through 6.6.*; unaffected 6.12.42 through 6.12.*; unaffected 6.15.10 through 6.15.*; unaffected 6.16.1 through 6.16.*; unaffected 6.17 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/dc0172c74bd9edaee7bea2ebb35f3dbd37a8ae80
- https://git.kernel.org/stable/c/1cf1ff15f262e8baf12201b270b6a79f9d119b2d
- https://git.kernel.org/stable/c/666b7cf6ac9aa074b8319a2b68cba7f2c30023f0
- https://git.kernel.org/stable/c/3466721f06edff834f99d9f49f23eabc6b2cb78e
- https://git.kernel.org/stable/c/345fc8d1838f3f8be7c8ed08d86a13dedef67136
- https://git.kernel.org/stable/c/70849d33130a2cf1d6010069ed200669c8651fbd
- https://git.kernel.org/stable/c/755427093e4294ac111c3f9e40d53f681a0fbdaa
- https://git.kernel.org/stable/c/1b1efa5f0e878745e94a98022e8edc675a87d78e
- https://git.kernel.org/stable/c/5661998536af52848cc4d52a377e90368196edea
ADP enrichment
No English description supplied.