[SRU][N:linux-azure][PATCH 0/2] Silent data corruption bug in CIFS module for write operations affecting kernel ~[6.3-6.9]

[John Cabaj]

BugLink: https://bugs.launchpad.net/bugs/2131951

SRU Justification

[Impact]

* Microsoft requested patches to fix CIFS module being affected by a silent data corruption bug affecting customers. Only 6.8 kernels are affected, hence the scope being limited to Noble.

[Fix]

* Noble: clean patches from the following upstream LKML submissions (https://lore.kernel.org/linux-cifs/CANT5p=q22P+zXHW2vH-n+W-zRe7ZWNORgh9gvoUOGpV6VMF8Fg@mail.gmail.com/, https://lore.kernel.org/stable/CAH2r5mus4Cp0jH4y=_5LDCiDftVOEZwVaJb1ZOq3Uze2G4Evpg@mail.gmail.com/):
* "UBUNTU: SAUCE: cifs: stop writeback extension when change of size is detected"
* "UBUNTU: SAUCE: cifs: Fix uncached read into ITER_KVEC iterator"

[Test Plan]

* Compile tested
* Microsoft tested

[Regression potential]

* Changes are localized to CIFS. Possible regressions could result in unexpected behavior of CIFS driver.

[Other info]

* SF#00422224

David Howells (1):
  UBUNTU: SAUCE: cifs: Fix uncached read into ITER_KVEC iterator

Shyam Prasad N (1):
  UBUNTU: SAUCE: cifs: stop writeback extension when change of size is
    detected

 fs/smb/client/file.c | 115 ++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 109 insertions(+), 6 deletions(-)

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2.43.0