Date: Wed, 27 May 2026 09:24:10 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 295637] mlx4ib: Fix EQ resource leak on mlx4_ib_add() error path Message-ID: <bug-295637-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=295637 Bug ID: 295637 Summary: mlx4ib: Fix EQ resource leak on mlx4_ib_add() error path Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: lihaoxiang@isrc.iscas.ac.cn Created attachment 271232 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=271232&action=edit possible patch mlx4_ib_alloc_eqs() allocates ibdev->eq_table and calls mlx4_assign_eq(). mlx4_assign_eq() increments the selected EQ ref_count. The normal remove path releases these resources through mlx4_ib_free_eqs(), but the mlx4_ib_add() error paths after mlx4_ib_alloc_eqs() currently fall through to err_map without calling mlx4_ib_free_eqs(). This can leak ibdev->eq_table and leave EQ references unreleased when any later initialization step fails. The attached patch fixes the error path by calling mlx4_ib_free_eqs() at err_map before iounmap(ibdev->uar_map). -- You are receiving this mail because: You are the assignee for the bug.home | help
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