linux-kernel - [PATCH 6/9] ARM: VDSO: also patch out __vdso_clock

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20251223-vdso-compat-time32-v1-6-97ea7a06a543@linutronix.de>
Date: Tue, 23 Dec 2025 07:59:17 +0100
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Andy Lutomirski <luto@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, 
 Vincenzo Frascino <vincenzo.frascino@....com>, 
 Shuah Khan <shuah@...nel.org>, Ingo Molnar <mingo@...hat.com>, 
 Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>, 
 x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>, 
 Russell King <linux@...linux.org.uk>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, 
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc: linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 Russell King <rmk+kernel@...linux.org.uk>, 
 linux-arm-kernel@...ts.infradead.org, linux-mips@...r.kernel.org, 
 Arnd Bergmann <arnd@...db.de>, linux-api@...r.kernel.org, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH 6/9] ARM: VDSO: also patch out __vdso_clock_getres() if
 unavailable

The vDSO code hides symbols which are non-functional.
__vdso_clock_getres() was not added to this list when it got introduced.

Fixes: 052e76a31b4a ("ARM: 8931/1: Add clock_getres entry point")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
 arch/arm/kernel/vdso.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/kernel/vdso.c b/arch/arm/kernel/vdso.c
index e38a30477f3d..566c40f0f7c7 100644
--- a/arch/arm/kernel/vdso.c
+++ b/arch/arm/kernel/vdso.c
@@ -161,6 +161,7 @@ static void __init patch_vdso(void *ehdr)
 		vdso_nullpatch_one(&einfo, "__vdso_gettimeofday");
 		vdso_nullpatch_one(&einfo, "__vdso_clock_gettime");
 		vdso_nullpatch_one(&einfo, "__vdso_clock_gettime64");
+		vdso_nullpatch_one(&einfo, "__vdso_clock_getres");
 	}
 }

-- 
2.52.0