ATTENTION! Before applying this patch a conflict patch in the queue needs to be removed: https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree...
Describe bug: After mounting a remote cifs resource, it becomes unavailable: df: /mnt/sambashare: Resource temporarily unavailable It was tested on the following Linux kernel: Linux altlinux 5.15.148
The error appeared starting from kernel 5.15.147 after adding the commit [1] "smb: client: fix OOB in SMB2_query_info_init()", in which the buffer length increases by 1 as a result of changes: . - iov[0].iov_len = total_len - 1 + input_len; + iov[0].iov_len = len; .
[1] https://patchwork.kernel.org/project/cifs-client/patch/20231213152557.6634-2...
Error fixed by backported commit in next patch adapted for the 5.15 kernel: [PATCH 5.15.y 1/1] smb3: Replace smb2pdu 1-element arrays with flex-arrays
P.S. I have already backported similar changes for the 5.10.y kernel [2], but I did not know that there was the same error on 5.15, since I only deal with kernels 5.10 and 6.1. Therefore, this patch is to follow the rules of backport to stable branches.
[2] https://lore.kernel.org/all/2024012613-woozy-exhume-7b9d@gregkh/T/