Redis 6.2.7 - Released Wed Apr 27 12:00:00 IDT 2022

Upgrade urgency: SECURITY, contains fixes to security issues.

Security Fixes:

• (CVE-2022-24736) An attacker attempting to load a specially crafted Lua script can cause NULL pointer dereference which will result with a crash of the redis-server process. This issue affects all versions of Redis. [reported by Aviv Yahav].
• (CVE-2022-24735) By exploiting weaknesses in the Lua script execution environment, an attacker with access to Redis can inject Lua code that will execute with the (potentially higher) privileges of another Redis user. [reported by Aviv Yahav].

Potentially Breaking Fixes

• LPOP/RPOP with count against non-existing list return null array (#10095)
• LPOP/RPOP used to produce wrong replies when count is 0 (#9692)

Performance and resource utilization improvements

• Speed optimization in command execution pipeline (#10502)
• Fix regression in Z[REV]RANGE commands (by-rank) introduced in Redis 6.2 (#10337)

Platform / toolchain support related improvements

• Fix RSS metrics on NetBSD and OpenBSD (#10116, #10149)
• Fix OpenSSL 3.0.x related issues (#10291)

Bug Fixes

• Lua: Add checks for min-slave-* configs when evaluating Lua scripts (#10160)
• Lua: fix crash on a script call with many arguments, a regression in v6.2.6 (#9809)
• Tracking: Make invalidation messages always after command's reply (#9422)
• Fix excessive stream trimming due to an overflow (#10068)
• Add missed error counting for INFO errorstats (#9646)
• Fix geo search bounding box check causing missing results (#10018)
• Improve EXPIRE TTL overflow detection (#9839)
• Modules: Fix thread safety violation when a module thread adds an error reply, broken in 6.2 (#10278)
• Modules: Fix missing and duplicate error stats (#10278)
• Module APIs: release clients blocked on module commands in cluster resharding and down state (#9483)
• Sentinel: Fix memory leak with TLS (#9753)
• Sentinel: Fix issues with hostname support (#10146)
• Sentinel: Fix election failures on certain container environments (#10197)