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| author | Miaohe Lin <linmiaohe@huawei.com> | 2022-03-24 00:07:18 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-24 03:00:35 +0100 |
| commit | 0cbcc92917c5de80f15c24d033566539ad696892 (patch) | |
| tree | 380d8f619508d02bf01eeeaf818fc3a9c208a531 /lib/Kconfig.kcsan | |
| parent | kcov: properly handle subsequent mmap calls (diff) | |
| download | linux-0cbcc92917c5de80f15c24d033566539ad696892.tar.xz linux-0cbcc92917c5de80f15c24d033566539ad696892.zip | |
kernel/resource: fix kfree() of bootmem memory again
Since commit ebff7d8f270d ("mem hotunplug: fix kfree() of bootmem
memory"), we could get a resource allocated during boot via
alloc_resource(). And it's required to release the resource using
free_resource(). Howerver, many people use kfree directly which will
result in kernel BUG. In order to fix this without fixing every call
site, just leak a couple of bytes in such corner case.
Link: https://lkml.kernel.org/r/20220217083619.19305-1-linmiaohe@huawei.com
Fixes: ebff7d8f270d ("mem hotunplug: fix kfree() of bootmem memory")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Alistair Popple <apopple@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/Kconfig.kcsan')
0 files changed, 0 insertions, 0 deletions