linux-stable/net/9p
Linus Torvalds a360f311f5 9p: fix slab cache name creation for real
This was attempted by using the dev_name in the slab cache name, but as
Omar Sandoval pointed out, that can be an arbitrary string, eg something
like "/dev/root".  Which in turn trips verify_dirent_name(), which fails
if a filename contains a slash.

So just make it use a sequence counter, and make it an atomic_t to avoid
any possible races or locking issues.

Reported-and-tested-by: Omar Sandoval <osandov@fb.com>
Link: https://lore.kernel.org/all/ZxafcO8KWMlXaeWE@telecaster.dhcp.thefacebook.com/
Fixes: 79efebae4a ("9p: Avoid creating multiple slab caches with the same name")
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Thorsten Leemhuis <regressions@leemhuis.info>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-10-21 15:41:29 -07:00
..
client.c 9p: fix slab cache name creation for real 2024-10-21 15:41:29 -07:00
error.c 9p: fix a bunch of checkpatch warnings 2021-11-04 21:04:25 +09:00
Kconfig net/9p/usbg: Fix build error 2024-10-09 09:56:40 +02:00
Makefile net/9p/usbg: Add new usb gadget function transport 2024-09-03 09:57:08 +02:00
mod.c net/p9: load default transports 2022-01-10 10:00:09 +09:00
protocol.c net: 9p: avoid freeing uninit memory in p9pdu_vreadf 2023-12-13 05:44:30 +09:00
protocol.h net/9p: add p9_msg_buf_size() 2022-10-05 07:05:41 +09:00
trans_common.c 9p: fix file headers 2021-11-03 17:45:04 +09:00
trans_common.h 9p: fix a bunch of checkpatch warnings 2021-11-04 21:04:25 +09:00
trans_fd.c 9p/trans_fd: remove Excess kernel-doc comment 2024-02-12 21:17:49 +09:00
trans_rdma.c 9p/rdma: unmap receive dma buffer in rdma_request()/post_recv() 2023-02-24 13:42:28 +00:00
trans_usbg.c net/9p/usbg: Add new usb gadget function transport 2024-09-03 09:57:08 +02:00
trans_virtio.c net: 9p: virtio: drop owner assignment 2024-05-22 08:31:17 -04:00
trans_xen.c 9p/net: xen: fix false positive printf format overflow warning 2023-10-27 12:44:08 +09:00