Date: Wed, 29 Apr 2026 21:42:53 +0000 From: Jean-=?utf-8?Q?S=C3=A9bast?==?utf-8?Q?ien P=C3=A9?=dron <dumbbell@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: e07d29adeabf - stable/15 - linuxkpi: Passing a size of zero to `krealloc()` frees the pointer Message-ID: <69f27b5d.18c2b.6a914668@gitrepo.freebsd.org>
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The branch stable/15 has been updated by dumbbell: URL: https://cgit.FreeBSD.org/src/commit/?id=e07d29adeabf9dce7037455946ddc63c09745521 commit e07d29adeabf9dce7037455946ddc63c09745521 Author: Jean-Sébastien Pédron <dumbbell@FreeBSD.org> AuthorDate: 2026-04-14 00:00:23 +0000 Commit: Jean-Sébastien Pédron <dumbbell@FreeBSD.org> CommitDate: 2026-04-29 21:03:34 +0000 linuxkpi: Passing a size of zero to `krealloc()` frees the pointer This matches the API on Linux. Reviewed by: bz Sponsored by: The FreeBSD Foundation (cherry picked from commit 2434fcfd0dd07847a8518351b4525ec488f4d0bd) --- sys/compat/linuxkpi/common/src/linux_slab.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sys/compat/linuxkpi/common/src/linux_slab.c b/sys/compat/linuxkpi/common/src/linux_slab.c index 96fe74dcd40d..a387e5c23ad3 100644 --- a/sys/compat/linuxkpi/common/src/linux_slab.c +++ b/sys/compat/linuxkpi/common/src/linux_slab.c @@ -250,6 +250,11 @@ lkpi_krealloc(const void *ptr, size_t size, gfp_t flags) if (ptr == NULL) return (kmalloc(size, flags)); + if (size == 0) { + kfree(ptr); + return (ZERO_SIZE_PTR); + } + osize = ksize(ptr); if (size <= osize) return (__DECONST(void *, ptr));home | help
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