| Message ID | 20240926164053.2123925-1-ghadi.rahme@canonical.com |
|---|---|
| Headers | show |
| Series | fs/smb: fix unable to list files in share | expand |
Acked-by: Mehmet Basaran <mehmet.basaran@canonical.com> Ghadi Elie Rahme <ghadi.rahme@canonical.com> writes: > BugLink: https://bugs.launchpad.net/bugs/2082423 > > [impact] > > Currently on the latest version of the 6.8 kernel, there is an issue where listing directories with CIFS fails and returns an error stating that the operation is not permitted. > There is an upstream patch to fix the issue: https://git.kernel.dk/?p=linux-block.git;a=commitdiff;h=ec686804117a0421cf31d54427768aaf93aa0069 > And I have back ported to Noble 6.8. Note that the same issue also affects jammy HWE 6.8. > > [Test Plan] > > 1. Create a CIFS share. > 2. Populate the CIFS share directory with files. > 3. connect to the CIFS share using a ubuntu noble machine or a jammy machine running 6.8 HWE. Steps to connect to a CIFS share can be found here: https://ubuntu.com/server/docs/how-to-mount-cifs-shares-permanently > 4. Once mounted, access the share and try listing the content of the directory with "ls". > 5. This will result in the following errors: > ls: cannot access 'file1': Operation not supported > ls: cannot access 'file2': Operation not supported > ls: cannot access 'file3': Operation not supported > ls: cannot access 'file4': Operation not supported > > 6. Looking at dmesg, the following traces can be seen: > CIFS: VFS: parse_reparse_point: unhandled reparse tag: 0x0000001b > CIFS: fs/smb/client/dir.c: Unexpected lookup error -95 > > 7. The expected output would be to have the files listed wihtout any "operation not supported" errors or dmesg CIFS related error logs. > > [Fix] > > The fix is already upstream and is provided by: > * ec686804117a smb: client: ignore unhandled reparse tags > > The patch does not apply cleanly due to the following missing commit: c520ba7573a8 smb: client: move most of reparse point handling code to common file > So I had to do a few modifications. > > [where problems could occur] > * The patch might not fix the issue and it might still be present in some scenarios. > * Other CIFS commands might break. > > Paulo Alcantara (1): > smb: client: ignore unhandled reparse tags > > /fs/smb/client/smb2ops.c | 11 +++++++---- > 1 file changed, 7 insertions(+), 4 deletions(-) > > -- > 2.43.0 > > > -- > kernel-team mailing list > kernel-team@lists.ubuntu.com > https://lists.ubuntu.com/mailman/listinfo/kernel-team