path: root/security/tomoyo/tomoyo.c
diff options
authorAlexey Gladkov <>2020-05-18 20:07:38 +0200
committerEric W. Biederman <>2020-05-19 07:07:50 -0500
commit9d78edeaec759f997c303f286ecd39daee166f2a (patch)
tree2325279bb24196709e59a506cbf4f346c1e69a2b /security/tomoyo/tomoyo.c
parent2dd8083f6d8acd1371ccabedef1c9f1ad272a90d (diff)
proc: proc_pid_ns takes super_block as an argument
syzbot found that touch /proc/testfile causes NULL pointer dereference at tomoyo_get_local_path() because inode of the dentry is NULL. Before c59f415a7cb6, Tomoyo received pid_ns from proc's s_fs_info directly. Since proc_pid_ns() can only work with inode, using it in the tomoyo_get_local_path() was wrong. To avoid creating more functions for getting proc_ns, change the argument type of the proc_pid_ns() function. Then, Tomoyo can use the existing super_block to get pid_ns. Link: Link: Reported-by: Fixes: c59f415a7cb6 ("Use proc_pid_ns() to get pid_namespace from the proc superblock") Signed-off-by: Alexey Gladkov <> Signed-off-by: Eric W. Biederman <>
Diffstat (limited to 'security/tomoyo/tomoyo.c')
0 files changed, 0 insertions, 0 deletions