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libnv: correct the calculation of the structure's size

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Reported by:	Milosz Kaniewski <milosz.kaniewski@gmail.com>
Approved by:	so
Security:	FreeBSD-SA-24:16.libnv
Security:	CVE-2024-45287

(cherry picked from commit 7f4731ab67f1d3345aee6626eb83cc5ce00010f0)
(cherry picked from commit 056c50c48b)
This commit is contained in:
Mariusz Zaborski 2024-09-11 16:43:43 +02:00 committed by Franco Fichtner
parent 4f2a65ebeb
commit c0382ed7b3
1 changed files with 1 additions and 1 deletions
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2
sys/contrib/libnv/nvlist.c
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@ -1029,7 +1029,7 @@ static bool
nvlist_check_header(struct nvlist_header *nvlhdrp)
{
if (nvlhdrp->nvlh_size > SIZE_MAX - sizeof(nvlhdrp)) {
if (nvlhdrp->nvlh_size > SIZE_MAX - sizeof(*nvlhdrp)) {
ERRNO_SET(EINVAL);
return (false);
}