Hi Steve, Please review the fix for the bug reported at: https://bugzilla.kernel.org/show_bug.cgi?id=213927 The issue was misalignment of create context caused by one of our earlier commit: commit ea64370bcae126a88cd26a16f1abcc23ab2b9a55 (tag: 5.10-rc6-smb3-fixes-part2) Author: Ronnie Sahlberg <lsahlber@xxxxxxxxxx> Date: Mon Nov 30 11:29:20 2020 +1000 cifs: refactor create_sd_buf() and and avoid corrupting the buffer When mounting with "idsfromsid" mount option, Azure corrupted the owner SIDs due to excessive padding caused by placing the owner fields at the end of the security descriptor on create. Placing owners at the front of the security descriptor (rather than the end) is also safer, as the number of ACEs (that follow it) are variable. Signed-off-by: Ronnie Sahlberg <lsahlber@xxxxxxxxxx> Suggested-by: Rohith Surabattula <rohiths@xxxxxxxxxxxxx> CC: Stable <stable@xxxxxxxxxxxxxxx> # v5.8 Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx> The fix can be found at: https://github.com/sprasad-microsoft/smb3-kernel-client/pull/4 I think this should be marked for stable as well, with a "fixes" tag. -- Regards, Shyam
