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69a7c50369
Trinity (the syscall fuzzer) discovered that reading /proc/dgrp/info was
leaking some memory. Fix by using the correct release op in info_proc_file_ops.
unreferenced object 0xffff88003b6696e0 (size 32):
comm "cat", pid 2321, jiffies 4294705179 (age 29.434s)
hex dump (first 32 bytes):
40 79 1c 81 ff ff ff ff 60 79 1c 81 ff ff ff ff @y......`y......
50 79 1c 81 ff ff ff ff b0 62 89 81 ff ff ff ff Py.......b......
backtrace:
[<ffffffff81c7e3b1>] kmemleak_alloc+0x21/0x50
[<ffffffff811955cb>] kmem_cache_alloc_trace+0x11b/0x190
[<ffffffff811c87dc>] single_open+0x3c/0xc0
[<ffffffff81896495>] info_proc_open+0x15/0x20
[<ffffffff8120c6d7>] proc_reg_open+0xb7/0x160
[<ffffffff811a1a5c>] do_dentry_open+0x1cc/0x280
[<ffffffff811a296a>] finish_open+0x4a/0x60
[<ffffffff811b14d7>] do_last+0xb07/0xdb0
[<ffffffff811b1842>] path_openat+0xc2/0x4f0
[<ffffffff811b1cac>] do_filp_open+0x3c/0xa0
[<ffffffff811a2dcc>] do_sys_open+0x11c/0x1c0
[<ffffffff811a2e8c>] sys_open+0x1c/0x20
[<ffffffff81ca3d69>] system_call_fastpath+0x16/0x1b
[<ffffffffffffffff>] 0xffffffffffffffff
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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|---|---|---|
| .. | ||
| dgrp_common.c | ||
| dgrp_common.h | ||
| dgrp_dpa_ops.c | ||
| dgrp_driver.c | ||
| dgrp_mon_ops.c | ||
| dgrp_net_ops.c | ||
| dgrp_ports_ops.c | ||
| dgrp_specproc.c | ||
| dgrp_sysfs.c | ||
| dgrp_tty.c | ||
| digirp.h | ||
| drp.h | ||
| Kconfig | ||
| Makefile | ||
| README | ||
| TODO | ||
The user space code to work with this driver is located at https://github.com/wfp5p/dgrp-utils