[SRU][F/J][PATCH 0/1] CVE-2024-40982

[Massimiliano Pellizzer]

[Impact]

ssb: Fix potential NULL pointer dereference in ssb_device_uevent()

The ssb_device_uevent() function first attempts to convert the 'dev' pointer
to 'struct ssb_device *'. However, it mistakenly dereferences 'dev' before
performing the NULL check, potentially leading to a NULL pointer
dereference if 'dev' is NULL.

To fix this issue, move the NULL check before dereferencing the 'dev' pointer,
ensuring that the pointer is valid before attempting to use it.

[Fix]

Oracular: Not affected
Noble:    Fixed
Jammy:    Backported from mainline
Focal:    Applied Jammy patch
Bionic:   Sent to ESM ML
Xenial:   Sent to ESM ML

[Test Case]

Compile tested only.

[Where problems could occur]

A regression here is unlikely due to the very limited
scope of the patch.


Rand Deeb (1):
  ssb: Fix potential NULL pointer dereference in ssb_device_uevent()

 drivers/ssb/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

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2.43.0