Description: smb: client: fix potential OOBs in smb2_parse_contexts()
References:
 https://lore.kernel.org/linux-cve-announce/2024022033-makeshift-flammable-cb72@gregkh/
Notes:
 carnil> First introducing commit could not be determined.
Bugs:
upstream: released (6.7-rc6) [af1689a9b7701d9907dfc84d2a4b57c4bc907144]
6.7-upstream-stable: N/A "Fixed before branching point"
6.6-upstream-stable: released (6.6.8) [17a0f64cc02d4972e21c733d9f21d1c512963afa]
6.1-upstream-stable: released (6.1.79) [1ae3c59355dc9882e09c020afe8ffbd895ad0f29]
5.10-upstream-stable: released (5.10.211) [13fb0fc4917621f3dfa285a27eaf7151d770b5e5]
4.19-upstream-stable: needed
sid: released (6.6.8-1)
6.1-bookworm-security: released (6.1.82-1)
5.10-bullseye-security: needed
4.19-buster-security: needed