Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length check_and_correct_requested_length() compares (off + len) against node_size using u32 arithmetic. When the caller passes a large len value (e.g. from an underflowed subtraction in hfs_brec_remove()), off + len can wrap past 2^32 and produce a small result, causing the bounds check to pass when it should fail. For example, with off=14 and len=0xFFFFFFF2 (underflowed from data_off - keyoffset - size in hfs_brec_remove), off + len wraps to 6, which is less than a typical node_size of 512, so the check passes and the subsequent memmove reads ~4GB past the node buffer. Fix this by widening the addition to u64 before comparing against node_size. This prevents the u32 wrap while keeping the logic straightforward.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 67ecc81f6492275c9c54280532f558483c99c90e before c8dd112173c02adf539fe2ad34a45f5e0068780d; affected a1a60e79502279f996e55052f50cc14919020475 before fc9d1447ca3cdc78d2e4ace1ce1f3a7c77ca08b1; affected fe2891a9c43ab87d1a210d61e6438ca6936e2f62 before 671c3fcc2ad31c1311ea6414382a2d95104ae1b9; affected 384a66b89f9540a9a8cb0f48807697dfabaece4c before b6a481642ea1977be2f84dc08c5affd742c177e7; affected efc095b35b23297e419c2ab4fc1ed1a8f0781a29 before 7399c3baee7bb622a92f0b895cd4d3009a693f2b; affected a431930c9bac518bf99d6b1da526a7f37ddee8d8 before 607217f7ad419b53926f71e3f75001813bbc08ad; affected a431930c9bac518bf99d6b1da526a7f37ddee8d8 before c25d3c931a63e762fcaa9cb125b901c53b62403f; affected a431930c9bac518bf99d6b1da526a7f37ddee8d8 before 966cb76fb2857a4242cab6ea2ea17acf818a3da7; affected e7d2dc2421e821e4045775e6dc226378328de6f6; affected fc7f732984ec91f30be3e574e0644066d07f2b78; affected eec522fd0d28106b14a59ab2d658605febe4a3bb; affected 5.10.241 before 5.10.261; affected 5.15.190 before 5.15.212; affected 6.1.149 before 6.1.178; affected 6.6.103 before 6.6.145; affected 6.12.43 before 6.12.97; affected 5.4.297 before 5.5; affected 6.15.11 before 6.16; affected 6.16.2 before 6.17 |
| Linux / Linux | affected 6.17; unaffected 0 before 6.17; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.4 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c8dd112173c02adf539fe2ad34a45f5e0068780d
- https://git.kernel.org/stable/c/fc9d1447ca3cdc78d2e4ace1ce1f3a7c77ca08b1
- https://git.kernel.org/stable/c/671c3fcc2ad31c1311ea6414382a2d95104ae1b9
- https://git.kernel.org/stable/c/b6a481642ea1977be2f84dc08c5affd742c177e7
- https://git.kernel.org/stable/c/7399c3baee7bb622a92f0b895cd4d3009a693f2b
- https://git.kernel.org/stable/c/607217f7ad419b53926f71e3f75001813bbc08ad
- https://git.kernel.org/stable/c/c25d3c931a63e762fcaa9cb125b901c53b62403f
- https://git.kernel.org/stable/c/966cb76fb2857a4242cab6ea2ea17acf818a3da7