Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH] Yama: use atomic allocations when reporting | Date | Wed, 4 May 2016 10:18:15 -0400 |
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Access reporting often happens from atomic contexes. Avoid lockups when allocating memory for command lines.
Fixes: 8a56038c2ae ("Yama: consolidate error reporting") Signed-off-by: Sasha Levin <sasha.levin@oracle.com> --- security/yama/yama_lsm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c index c19f6e5..9b756b1 100644 --- a/security/yama/yama_lsm.c +++ b/security/yama/yama_lsm.c @@ -47,8 +47,8 @@ static void report_access(const char *access, struct task_struct *target, { char *target_cmd, *agent_cmd; - target_cmd = kstrdup_quotable_cmdline(target, GFP_KERNEL); - agent_cmd = kstrdup_quotable_cmdline(agent, GFP_KERNEL); + target_cmd = kstrdup_quotable_cmdline(target, GFP_ATOMIC); + agent_cmd = kstrdup_quotable_cmdline(agent, GFP_ATOMIC); pr_notice_ratelimited( "ptrace %s of \"%s\"[%d] was attempted by \"%s\"[%d]\n", -- 1.9.1
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