mbox series

[BlueZ,v2,0/1] Fix null pointer dereference in util_ltv_foreach

Message ID 20240621064342.33664-1-sarveshwar.bajaj@nxp.com
Headers show
Series Fix null pointer dereference in util_ltv_foreach | expand

Message

Sarveshwar Bajaj June 21, 2024, 6:43 a.m. UTC 
In the existing code, iov structure is initialized with iov.iov_base = (void *)
data. If data is NULL,casting (void *) NULL to iov_base results in a null 
pointer dereference.Inside the loop of util_ltv_foreach, 
util_iov_pull_u8(&iov, &l) is called to pull uint8_t values from iov.
If iov.iov_base (derived from data) is NULL,attempting to dereference it in 
util_iov_pull_u8 will cause a segmentation fault.

Added NULL pointer check for data so it will presvent null pointer dereference



Sarveshwar Bajaj (1):
  shared/util: Fix null pointer dereference in util_ltv_foreach()

 src/shared/util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)