CVE-2026-89637

smb: client: fix UAF and buffer leak in cifs_check_trans2() for malformed secondary T2

References

Notes


      
Bugs

      
      
Status

      

	

	  Branch
	  Status
	

	
	

	  upstream
	  
	    
	    
	    released (7.3-rc1) [730d0bb19507b9e19c2fe5343109ac618e2fbce5]
	    
	  
	

	
	

	  7.2-upstream-stable
	  
	    
	    
	    released (7.2.4) [5e6533a683f6a851158d9f33fb4ea8f4f25d7f84]
	    
	  
	

	
	

	  7.1-upstream-stable
	  
	    
	    
	    needed
	    
	  
	

	
	

	  6.18-upstream-stable
	  
	    
	    
	    released (6.18.51) [9eed72e9534b10a6d9f8f5146feff3db53aebdba]
	    
	  
	

	
	

	  6.12-upstream-stable
	  
	    
	    
	    needed
	    
	  
	

	
	

	  6.6-upstream-stable
	  
	    
	    
	    needed
	    
	  
	

	
	

	  6.1-upstream-stable
	  
	    
	    
	    needed
	    
	  
	

	
	

	  5.10-upstream-stable
	  
	    
	    
	    needed
	    
	  
	

	
	

	  sid
	  
	    
	    
	    released (7.2.6-1)
	    
	  
	

	
	

	  6.12-trixie-security
	  
	    
	    
	    needed
	    
	  
	

	
	

	  6.1-bookworm-security
	  
	    
	    
	    needed