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authorRichard Guo <rguo@postgresql.org>2025-03-26 17:46:51 +0900
committerRichard Guo <rguo@postgresql.org>2025-03-26 17:46:51 +0900
commit7c82b4f711877b175142bb2b2a6e2c2ee2429441 (patch)
tree3bb928505abaf48be9b042e6df2d753b59a9075e /src/backend/utils/adt/float.c
parent787514b30bb7dd0b3484d6cb717e3b9aafc06c4a (diff)
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Fix integer-overflow problem in scram_SaltedPassword()
Setting the iteration count for SCRAM secret generation to INT_MAX will cause an infinite loop in scram_SaltedPassword() due to integer overflow, as the loop uses the "i <= iterations" comparison. To fix, use "i < iterations" instead. Back-patch to v16 where the user-settable GUC scram_iterations has been added. Author: Kevin K Biju <kevinkbiju@gmail.com> Reviewed-by: Richard Guo <guofenglinux@gmail.com> Reviewed-by: Michael Paquier <michael@paquier.xyz> Discussion: https://postgr.es/m/CAM45KeEMm8hnxdTOxA98qhfZ9CzGDdgy3mxgJmy0c+2WwjA6Zg@mail.gmail.com
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