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| author | Jeffin Philip <jeffinphilip14@gmail.com> | 2026-09-04 18:44:37 +0530 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2026-09-06 05:14:38 -0400 |
| commit | 33fb59da49c4c3f5c2ec9f9d4447a56857a02c02 (patch) | |
| tree | 0c903ae2f0e432e1d978132a67744bda42d528cb /scripts/Makefile.thinlto | |
| parent | 9a141d3dc869d18b2eab35e999f4790a9b84e40f (diff) | |
| download | linux-33fb59da49c4c3f5c2ec9f9d4447a56857a02c02.tar.gz linux-33fb59da49c4c3f5c2ec9f9d4447a56857a02c02.zip | |
RDMA/core: fix refcount bug in iwpm_get_nlmsg_request()
iwpm_get_nlmsg_request() initializes refcount _after_ list_add_tail()
making it accessible to global list where another CPU can kref_get()
on nlmsg_request causing a refcount "addition on 0" bug. Fix this
by initializing kref _before_ list_add_tail() so refcount for
nlmsg_request can be incremented/decremented normally. In addition,
also initialize every field before list_add_tail().
Reported-by: syzbot+bd317784d628820741b5@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=bd317784d628820741b5
Fixes: 30dc5e63d6a5 ("RDMA/core: Add support for iWARP Port Mapper user space service")
Cc: stable@vger.kernel.org
Signed-off-by: Jeffin Philip <jeffinphilip14@gmail.com>
Link: https://patch.msgid.link/20260904131437.12917-1-jeffinphilip14@gmail.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'scripts/Makefile.thinlto')
0 files changed, 0 insertions, 0 deletions