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| author | Michael Ellerman <mpe@ellerman.id.au> | 2024-09-20 19:35:20 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-11-17 14:59:39 +0100 |
| commit | 7e222d2c7f9ab06280110edd3b0c4340ff9f2a29 (patch) | |
| tree | 46eb0b3b3e426eb51b7a318ee9f602816c88c82c | |
| parent | b718f71747b7e4e9ed83230f9dcde38110a9cd1c (diff) | |
| download | linux-7e222d2c7f9ab06280110edd3b0c4340ff9f2a29.tar.gz linux-7e222d2c7f9ab06280110edd3b0c4340ff9f2a29.tar.bz2 linux-7e222d2c7f9ab06280110edd3b0c4340ff9f2a29.zip | |
powerpc/powernv: Free name on error in opal_event_init()
[ Upstream commit cf8989d20d64ad702a6210c11a0347ebf3852aa7 ]
In opal_event_init() if request_irq() fails name is not freed, leading
to a memory leak. The code only runs at boot time, there's no way for a
user to trigger it, so there's no security impact.
Fix the leak by freeing name in the error path.
Reported-by: 2639161967 <2639161967@qq.com>
Closes: https://lore.kernel.org/linuxppc-dev/87wmjp3wig.fsf@mail.lhotse
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://patch.msgid.link/20240920093520.67997-1-mpe@ellerman.id.au
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-irqchip.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/opal-irqchip.c b/arch/powerpc/platforms/powernv/opal-irqchip.c index dcec0f760c8f..522bda391179 100644 --- a/arch/powerpc/platforms/powernv/opal-irqchip.c +++ b/arch/powerpc/platforms/powernv/opal-irqchip.c @@ -285,6 +285,7 @@ int __init opal_event_init(void) name, NULL); if (rc) { pr_warn("Error %d requesting OPAL irq %d\n", rc, (int)r->start); + kfree(name); continue; } } |