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CVE-2024-50152
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CVE-2024-50152
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
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Description
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix possible double free in smb2_set_ea()
Clang static checker(scan-build) warning:
fs/smb/client/smb2ops.c:1304:2: Attempt to free released memory.
1304 | kfree(ea);
| ^~~~~~~~~
There is a double free in such case:
‘ea is initialized to NULL’ –> ‘first successful memory allocation for
ea’ –> ‘something failed, goto sea_exit’ –> ‘first memory release for ea’
–> ‘goto replay_again’ –> ‘second goto sea_exit before allocate memory
for ea’ –> ‘second memory release for ea resulted in double free’.
Re-initialie ‘ea’ to NULL near to the replay_again label, it can fix this
double free problem.
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CVE ID
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