Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
4342306f0f0d5ff4315a204d315c1b51b914fca5 to < 20f9bfc664d6a478f9a5bbc0c380f80f7a1a06c6affected4342306f0f0d5ff4315a204d315c1b51b914fca5 to < 39c6312009574ca73865354133ca222e7753a71baffected4342306f0f0d5ff4315a204d315c1b51b914fca5 to < e7675f85a92233136c630000a0b7cf97826705daaffected4342306f0f0d5ff4315a204d315c1b51b914fca5 to < ec275bf9693d19cc0fdce8436f4c425ced86f6e7affected
Linux Linux
Default version status: affected
5.15affected0 to < 5.15unaffected5.15.113 to ≤ 5.15.*unaffected6.1.81 to ≤ 6.1.*unaffected6.3.4 to ≤ 6.3.*unaffected6.4 to ≤ *unaffected