Description
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential oob read in nilfs_btree_check_delete() The function nilfs_btree_check_delete(), which checks whether degeneration to direct mapping occurs before deleting a b-tree entry, causes memory access outside the block buffer when retrieving the maximum key if the root node has no entries. This does not usually happen because b-tree mappings with 0 child nodes are never created by mkfs.nilfs2 or nilfs2 itself. However, it can happen if the b-tree root node read from a device is configured that way, so fix this potential issue by adding a check for that case.
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
17c76b0104e4a6513983777e1a17e0297a12b0c4 to < f3a9859767c7aea758976f5523903d247e585129affected17c76b0104e4a6513983777e1a17e0297a12b0c4 to < ed76d381dae125b81d09934e365391a656249da8affected17c76b0104e4a6513983777e1a17e0297a12b0c4 to < d20674f31626e0596ae4c1d9401dfb6739b81b58affected17c76b0104e4a6513983777e1a17e0297a12b0c4 to < c4f8554996e8ada3be872dfb8f60e93bcf15fb27affected17c76b0104e4a6513983777e1a17e0297a12b0c4 to < a8abfda768b9f33630cfbc4af6c4214f1e5681b0affected17c76b0104e4a6513983777e1a17e0297a12b0c4 to < 257f9e5185eb6de83377caea686c306e22e871f2affected17c76b0104e4a6513983777e1a17e0297a12b0c4 to < a33e967b681e088a125b979975c93e3453e686cdaffected17c76b0104e4a6513983777e1a17e0297a12b0c4 to < c4cbcc64bb31e67e02940ce060cc77f7180564cfaffected17c76b0104e4a6513983777e1a17e0297a12b0c4 to < f9c96351aa6718b42a9f42eaf7adce0356bdb5e8affected
Linux Linux
Default version status: affected
2.6.30affected0 to < 2.6.30unaffected4.19.323 to ≤ 4.19.*unaffected5.4.285 to ≤ 5.4.*unaffected5.10.227 to ≤ 5.10.*unaffected5.15.168 to ≤ 5.15.*unaffected6.1.113 to ≤ 6.1.*unaffected6.6.54 to ≤ 6.6.*unaffected6.10.13 to ≤ 6.10.*unaffected6.11.2 to ≤ 6.11.*unaffected6.12 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/f3a9859767c7aea758976f5523903d247e585129 ↗
- https://git.kernel.org/stable/c/ed76d381dae125b81d09934e365391a656249da8 ↗
- https://git.kernel.org/stable/c/d20674f31626e0596ae4c1d9401dfb6739b81b58 ↗
- https://git.kernel.org/stable/c/c4f8554996e8ada3be872dfb8f60e93bcf15fb27 ↗
- https://git.kernel.org/stable/c/a8abfda768b9f33630cfbc4af6c4214f1e5681b0 ↗
- https://git.kernel.org/stable/c/257f9e5185eb6de83377caea686c306e22e871f2 ↗
- https://git.kernel.org/stable/c/a33e967b681e088a125b979975c93e3453e686cd ↗
- https://git.kernel.org/stable/c/c4cbcc64bb31e67e02940ce060cc77f7180564cf ↗
- https://git.kernel.org/stable/c/f9c96351aa6718b42a9f42eaf7adce0356bdb5e8 ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗