Description
In the Linux kernel, the following vulnerability has been resolved: ntfs: ->d_compare() must not block ... so don't use __getname() there. Switch it (and ntfs_d_hash(), while we are at it) to kmalloc(PATH_MAX, GFP_NOWAIT). Yes, ntfs_d_hash() almost certainly can do with smaller allocations, but let ntfs folks deal with that - keep the allocation size as-is for now. Stop abusing names_cachep in ntfs, period - various uses of that thing in there have nothing to do with pathnames; just use k[mz]alloc() and be done with that. For now let's keep sizes as-in, but AFAICS none of the users actually want PATH_MAX.
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
a3a956c78efaa202b1d75190136671cf6e87bfbe to < 02ecc0978c459fd90bb24b2a946dd16d43e68fe5affecteda3a956c78efaa202b1d75190136671cf6e87bfbe to < 1be7ca86ce1794d966fda5d82181bc978b150fbcaffecteda3a956c78efaa202b1d75190136671cf6e87bfbe to < 142c444a395f4d26055c8a4473e228bb86283f1eaffecteda3a956c78efaa202b1d75190136671cf6e87bfbe to < fb4b1f969ba01fa1d4088467a02fc1e5f0806710affecteda3a956c78efaa202b1d75190136671cf6e87bfbe to < ca2a04e84af79596e5cd9cfe697d5122ec39c8ceaffected
Linux Linux
Default version status: affected
6.2affected0 to < 6.2unaffected6.6.141 to ≤ 6.6.*unaffected6.12.91 to ≤ 6.12.*unaffected6.18.16 to ≤ 6.18.*unaffected6.19.6 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/02ecc0978c459fd90bb24b2a946dd16d43e68fe5 ↗
- https://git.kernel.org/stable/c/1be7ca86ce1794d966fda5d82181bc978b150fbc ↗
- https://git.kernel.org/stable/c/142c444a395f4d26055c8a4473e228bb86283f1e ↗
- https://git.kernel.org/stable/c/fb4b1f969ba01fa1d4088467a02fc1e5f0806710 ↗
- https://git.kernel.org/stable/c/ca2a04e84af79596e5cd9cfe697d5122ec39c8ce ↗