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| author | Sergey Shtylyov <s.shtylyov@omp.ru> | 2022-08-17 23:00:45 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2023-02-20 13:53:41 +0100 |
| commit | feabecaff5902f896531dde90646ca5dfa9d4f7d (patch) | |
| tree | a8b173dcc4edbea56200dcda2f0653c211b0c294 /mm/mremap.c | |
| parent | c9c3395d5e3dcc6daee66c6908354d47bf98cb0c (diff) | |
| download | linux-stable-feabecaff5902f896531dde90646ca5dfa9d4f7d.tar.gz linux-stable-feabecaff5902f896531dde90646ca5dfa9d4f7d.tar.bz2 linux-stable-feabecaff5902f896531dde90646ca5dfa9d4f7d.zip | |
genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()
If ipi_send_{mask|single}() is called with an invalid interrupt number, all
the local variables there will be NULL. ipi_send_verify() which is invoked
from these functions does 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 pointer 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>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/b541232d-c2b6-1fe9-79b4-a7129459e4d0@omp.ru
Diffstat (limited to 'mm/mremap.c')
0 files changed, 0 insertions, 0 deletions