Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix wrong return code to engine in asynch callbacks When crypto_finalize_hash_request() or crypto_finalize_skcipher_request() explicitly completes a request, the do_one_request callback must return 0 to indicate successful handling. Returning a negative error code causes the crypto engine to assume the driver failed to take ownership and triggers a second completion via crypto_request_complete(), resulting in a double completion. This pattern occurs in paes_s390.c 4 times and once in phmac_s390.c. Fixed in phmac_do_one_request() and all four paes do_one_request callbacks (ecb, cbc, ctr, xts) by returning 0 after explicit finalization instead of propagating the error code.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 before 972e0d9b7d1d112240ccde1f1be85bf9ffaa1720; affected 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 before 5480291aa848e19e61175abfd457933516db70c6; affected 6cd87cb5ef6ca50ae17c371482ceaab1d635e232 before ac1481320110b803ab9b79ab4d2ca11a74fc05f2 |
| Linux / Linux | affected 6.16; unaffected 0 before 6.16; unaffected 6.18.53 through 6.18.*; unaffected 7.2.7 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.