[Bug 266136] ctl_ioctl() passes user-supplied size directly to kernel malloc() -> potential crash
Date: Wed, 14 Sep 2022 17:28:22 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=266136 --- Comment #4 from commit-hook@FreeBSD.org --- A commit in branch stable/13 references this bug: URL: https://cgit.FreeBSD.org/src/commit/?id=c48d0754a05334cacbe6cd34871c10f3ef6f4d56 commit c48d0754a05334cacbe6cd34871c10f3ef6f4d56 Author: Alexander Motin <mav@FreeBSD.org> AuthorDate: 2022-09-07 01:58:27 +0000 Commit: Alexander Motin <mav@FreeBSD.org> CommitDate: 2022-09-14 17:27:04 +0000 CTL: Validate IOCTL parameters. It was possible to cause kernel panic by passing too large args_len or non-NULL result_nvl. Though since the /dev/cam/ctl device is accessible only by root and used only by limited number of tools it was not a big problem. PR: 266115 PR: 266136 Reported by: Robert Morris <rtm@lcs.mit.edu> MFC after: 1 week (cherry picked from commit 0586be48a97c5af50ba4f578d33211f81cc57016) sys/cam/ctl/ctl.c | 14 ++++++++++++++ sys/cam/ctl/ctl_ioctl.h | 1 + 2 files changed, 15 insertions(+) -- You are receiving this mail because: You are the assignee for the bug.