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SubjectRe: [PATCH] irq: ipi: fix NULL pointer deref in irq_data_get_affinity_mask()
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On Wed, Feb 08 2023 at 21:35, Sergey Shtylyov wrote:
> On 8/17/22 11:00 PM, Sergey Shtylyov wrote:
>
>> Iff ipi_send_{mask|single}() get called with e.g. an invalid IRQ #, all the
>> local variables there will be NULL -- the problem is that ipi_send_verify()
>> (that's called first thing) doesn't verify its 'data' parameter, resulting
>> in a kernel oops in irq_data_get_affinity_mask() as the passed NULL pointer
>> gets dereferenced. Add a missing NULL check in ipi_send_verify()...
>>
>> Found by Linux Verification Center (linuxtesting.org) with the SVACE static
>> analysis tool.
>>
>> Fixes: 3b8e29a82dd1 ("genirq: Implement ipi_send_mask/single()")
>> Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
>
> Patch fell thru the cracks? :-/

Obviously :)

/me goes to find trash tongs to pick it up

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