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From: Charlie Jenkins <charlie@rivosinc.com>
To: Paul Walmsley <paul.walmsley@sifive.com>,
	 Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>
Cc: Palmer Dabbelt <palmer@rivosinc.com>,
	linux-riscv@lists.infradead.org,  linux-kernel@vger.kernel.org,
	Charlie Jenkins <charlie@rivosinc.com>,
	 kernel test robot <lkp@intel.com>,
	Julia Lawall <julia.lawall@inria.fr>
Subject: [PATCH v2 3/4] riscv: Fix relocation_hashtable size
Date: Wed, 03 Jan 2024 12:22:02 -0800	[thread overview]
Message-ID: <20240103-module_loading_fix-v2-3-292b160552c9@rivosinc.com> (raw)
In-Reply-To: <20240103-module_loading_fix-v2-0-292b160552c9@rivosinc.com>

A second dereference is needed to get the accurate size of the
relocation_hashtable.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Fixes: d8792a5734b0 ("riscv: Safely remove entries from relocation list")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@inria.fr>
Closes: https://lore.kernel.org/r/202312120044.wTI1Uyaa-lkp@intel.com/
---
 arch/riscv/kernel/module.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c
index 32743180e8ef..ceb0adb38715 100644
--- a/arch/riscv/kernel/module.c
+++ b/arch/riscv/kernel/module.c
@@ -764,7 +764,7 @@ initialize_relocation_hashtable(unsigned int num_relocations,
 	hashtable_size <<= should_double_size;
 
 	*relocation_hashtable = kmalloc_array(hashtable_size,
-					      sizeof(*relocation_hashtable),
+					      sizeof(**relocation_hashtable),
 					      GFP_KERNEL);
 	if (!*relocation_hashtable)
 		return 0;

-- 
2.43.0


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  parent reply	other threads:[~2024-01-03 20:22 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-03 20:21 [PATCH v2 0/4] riscv: modules: Fix module loading error handling Charlie Jenkins
2024-01-03 20:22 ` [PATCH v2 1/4] riscv: Fix module loading free order Charlie Jenkins
2024-01-03 20:22 ` [PATCH v2 2/4] riscv: Correctly free relocation hashtable on error Charlie Jenkins
2024-01-03 20:22 ` Charlie Jenkins [this message]
2024-01-03 20:22 ` [PATCH v2 4/4] riscv: Convert relocation iterator to do-while Charlie Jenkins
2024-01-04 12:35   ` Dan Carpenter
2024-01-04 19:36     ` Charlie Jenkins

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