Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Validate XDomain request packet size before type cast tb_xdp_handle_request() casts the received packet buffer to protocol-specific structs without verifying that the allocation is large enough for the target type. A peer can send a minimal XDomain packet that passes the generic header length check but is shorter than the struct accessed after the cast, causing out-of- bounds reads from the kmemdup allocation. Plumb the packet length through xdomain_request_work and validate it against the expected struct size before each cast.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before a770e62923090d7572f1f5a8507ae551d354a057; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before 0dd61ba03d05187726ecdf9c0e2175a81b9b24f6; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before 79235c8add5da4bf27a12f5a5dbb579f300c059e; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before 46da5c3ea011e884028a91cf913db093920a915b; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before 07cd2787cdf8942d24a1a3ef81aa89b526fb6381; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 before a504b9f2797b739e0304d537e8aa4ce883ecce39 |
| Linux / Linux | affected 4.15; unaffected 0 before 4.15; unaffected 6.1.176 through 6.1.*; unaffected 6.6.143 through 6.6.*; unaffected 6.12.94 through 6.12.*; unaffected 6.18.36 through 6.18.*; unaffected 7.0.13 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a770e62923090d7572f1f5a8507ae551d354a057
- https://git.kernel.org/stable/c/0dd61ba03d05187726ecdf9c0e2175a81b9b24f6
- https://git.kernel.org/stable/c/79235c8add5da4bf27a12f5a5dbb579f300c059e
- https://git.kernel.org/stable/c/46da5c3ea011e884028a91cf913db093920a915b
- https://git.kernel.org/stable/c/07cd2787cdf8942d24a1a3ef81aa89b526fb6381
- https://git.kernel.org/stable/c/a504b9f2797b739e0304d537e8aa4ce883ecce39
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.