Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix a possible null-pointer dereference in ni_clear() In a previous commit c1006bd13146, ni->mi.mrec in ni_write_inode() could be NULL, and thus a NULL check is added for this variable. However, in the same call stack, ni->mi.mrec can be also dereferenced in ni_clear(): ntfs_evict_inode(inode) ni_write_inode(inode, ...) ni = ntfs_i(inode); is_rec_inuse(ni->mi.mrec) -> Add a NULL check by previous commit ni_clear(ntfs_i(inode)) is_rec_inuse(ni->mi.mrec) -> No check Thus, a possible null-pointer dereference may exist in ni_clear(). To fix it, a NULL check is added in this function.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 4342306f0f0d5ff4315a204d315c1b51b914fca5 before 20f9bfc664d6a478f9a5bbc0c380f80f7a1a06c6; affected 4342306f0f0d5ff4315a204d315c1b51b914fca5 before 39c6312009574ca73865354133ca222e7753a71b; affected 4342306f0f0d5ff4315a204d315c1b51b914fca5 before e7675f85a92233136c630000a0b7cf97826705da; affected 4342306f0f0d5ff4315a204d315c1b51b914fca5 before ec275bf9693d19cc0fdce8436f4c425ced86f6e7 |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 5.15.113 through 5.15.*; unaffected 6.1.81 through 6.1.*; unaffected 6.3.4 through 6.3.*; unaffected 6.4 through * |
CWE
No CWE identifiers supplied.