Pavel Begunkov 43eef70e7e io_uring: fix corner case forgetting to vunmap ... io_pages_unmap() is a bit tricky in trying to figure whether the pages were previously vmap'ed or not. In particular If there is juts one page it belives there is no need to vunmap. Paired io_pages_map(), however, could've failed io_mem_alloc_compound() and attempted to io_mem_alloc_single(), which does vmap, and that leads to unpaired vmap. The solution is to fail if io_mem_alloc_compound() can't allocate a single page. That's the easiest way to deal with it, and those two functions are getting removed soon, so no need to overcomplicate it. Cc: stable@vger.kernel.org Fixes: 3ab1db3c60 ("io_uring: get rid of remap_pfn_range() for mapping rings/sqes") Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/477e75a3907a2fe83249e49c0a92cd480b2c60e0.1732569842.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>		2024-11-27 15:00:57 -07:00
..
advise.c	io_uring/advise: support 64-bit lengths	2024-06-16 14:54:55 -06:00
advise.h	io_uring: split out fadvise/madvise operations	2022-07-24 18:39:11 -06:00
alloc_cache.h	io_uring/alloc_cache: switch to array based caching	2024-04-15 08:10:25 -06:00
cancel.c	io_uring: move struct io_kiocb from task_struct to io_uring_task	2024-11-06 13:55:38 -07:00
cancel.h	io_uring/cancel: get rid of init_hash_table() helper	2024-10-29 13:43:27 -06:00
epoll.c	io_uring: undeprecate epoll_ctl support	2023-05-26 20:22:41 -06:00
epoll.h	io_uring: move epoll handler to its own file	2022-07-24 18:39:11 -06:00
eventfd.c	io_uring/eventfd: move ctx->evfd_last_cq_tail into io_ev_fd	2024-10-29 13:43:26 -06:00
eventfd.h	io_uring/eventfd: move eventfd handling to separate file	2024-06-16 14:54:55 -06:00
fdinfo.c	io_uring/napi: add static napi tracking strategy	2024-11-06 13:55:38 -07:00
fdinfo.h	io_uring: move fdinfo helpers to its own file	2022-07-24 18:39:12 -06:00
filetable.c	io_uring/rsrc: pass 'struct io_ring_ctx' reference to rsrc helpers	2024-11-07 15:24:33 -07:00
filetable.h	io_uring/rsrc: pass 'struct io_ring_ctx' reference to rsrc helpers	2024-11-07 15:24:33 -07:00
fs.c	io_uring/fs: consider link->flags when getting path for LINKAT	2023-11-20 09:01:42 -07:00
fs.h	io_uring: split out filesystem related operations	2022-07-24 18:39:11 -06:00
futex.c	io_uring: move cancelations to be io_uring_task based	2024-11-06 13:55:38 -07:00
futex.h	io_uring: move cancelations to be io_uring_task based	2024-11-06 13:55:38 -07:00
io_uring.c	io_uring: fix task_work cap overshooting	2024-11-26 13:42:27 -07:00
io_uring.h	io_uring: limit local tw done	2024-11-21 07:11:00 -07:00
io-wq.c	io_uring/io-wq: inherit cpuset of cgroup in io worker	2024-09-11 07:27:56 -06:00
io-wq.h	io_uring/io-wq: make io_wq_work flags atomic	2024-06-16 14:54:55 -06:00
kbuf.c	for-6.12/io_uring-20240913	2024-09-16 13:29:00 +02:00
kbuf.h	io_uring/kbuf: add support for incremental buffer consumption	2024-08-29 08:44:58 -06:00
Makefile	io_uring: add GCOV_PROFILE_URING Kconfig option	2024-08-30 10:52:02 -06:00
memmap.c	io_uring: fix corner case forgetting to vunmap	2024-11-27 15:00:57 -07:00
memmap.h	io_uring: introduce concept of memory regions	2024-11-15 09:58:34 -07:00
msg_ring.c	switch io_msg_ring() to CLASS(fd)	2024-11-15 09:55:54 -07:00
msg_ring.h	io_uring/msg_ring: add support for sending a sync message	2024-10-29 13:43:26 -06:00
napi.c	io_uring/napi: add static napi tracking strategy	2024-11-06 13:55:38 -07:00
napi.h	io_uring/napi: add static napi tracking strategy	2024-11-06 13:55:38 -07:00
net.c	io_uring/rsrc: add & apply io_req_assign_buf_node()	2024-11-07 15:24:33 -07:00
net.h	io_uring: Introduce IORING_OP_LISTEN	2024-06-19 07:57:21 -06:00
nop.c	io_uring/nop: ensure nop->fd is always initialized	2024-11-21 07:15:30 -07:00
nop.h	io_uring: move nop into its own file	2022-07-24 18:39:11 -06:00
notif.c	io_uring: move struct io_kiocb from task_struct to io_uring_task	2024-11-06 13:55:38 -07:00
notif.h	io_uring/notif: implement notification stacking	2024-04-22 19:31:18 -06:00
opdef.c	io_uring/splice: open code 2nd direct file assignment	2024-10-29 13:43:28 -06:00
opdef.h	io_uring: Fix probe of disabled operations	2024-06-19 08:58:00 -06:00
openclose.c	io_uring: enable audit and restrict cred override for IORING_OP_FIXED_FD_INSTALL	2024-01-23 15:25:14 -07:00
openclose.h	io_uring/openclose: add support for IORING_OP_FIXED_FD_INSTALL	2023-12-12 07:42:57 -07:00
poll.c	io_uring: move struct io_kiocb from task_struct to io_uring_task	2024-11-06 13:55:38 -07:00
poll.h	io_uring: move cancelations to be io_uring_task based	2024-11-06 13:55:38 -07:00
refs.h	io_uring: kill dead code in io_req_complete_post	2024-04-15 08:10:26 -06:00
register.c	io_uring: protect register tracing	2024-11-18 09:10:56 -07:00
register.h	io_uring: temporarily disable registered waits	2024-11-15 09:58:34 -07:00
rsrc.c	io_uring/rsrc: remove '->ctx_ptr' of 'struct io_rsrc_node'	2024-11-07 15:24:33 -07:00
rsrc.h	io_uring/rsrc: add & apply io_req_assign_buf_node()	2024-11-07 15:24:33 -07:00
rw.c	io_uring/rsrc: add & apply io_req_assign_buf_node()	2024-11-07 15:24:33 -07:00
rw.h	io_uring/alloc_cache: switch to array based caching	2024-04-15 08:10:25 -06:00
slist.h	io_uring: silence variable ‘prev’ set but not used warning	2023-03-09 10:10:58 -07:00
splice.c	io_uring/rsrc: pass 'struct io_ring_ctx' reference to rsrc helpers	2024-11-07 15:24:33 -07:00
splice.h	io_uring/splice: open code 2nd direct file assignment	2024-10-29 13:43:28 -06:00
sqpoll.c	io_uring/sqpoll: wait on sqd->wait for thread parking	2024-10-29 13:43:27 -06:00
sqpoll.h	io_uring/sqpoll: statistics of the true utilization of sq threads	2024-03-01 06:28:19 -07:00
statx.c	vfs: retire user_path_at_empty and drop empty arg from getname_flags	2024-06-05 17:03:57 +02:00
statx.h	io_uring: move statx handling to its own file	2022-07-24 18:39:11 -06:00
sync.c	io_uring: for requests that require async, force it	2023-01-29 15:18:26 -07:00
sync.h	io_uring: split out fs related sync/fallocate functions	2022-07-24 18:39:11 -06:00
tctx.c	io_uring: move struct io_kiocb from task_struct to io_uring_task	2024-11-06 13:55:38 -07:00
tctx.h	io_uring: simplify __io_uring_add_tctx_node	2022-10-07 12:25:30 -06:00
timeout.c	io_uring: move struct io_kiocb from task_struct to io_uring_task	2024-11-06 13:55:38 -07:00
timeout.h	io_uring: move cancelations to be io_uring_task based	2024-11-06 13:55:38 -07:00
truncate.c	io_uring: add support for ftruncate	2024-02-09 09:04:39 -07:00
truncate.h	io_uring: add support for ftruncate	2024-02-09 09:04:39 -07:00
uring_cmd.c	io_uring/uring_cmd: fix buffer index retrieval	2024-11-11 08:11:37 -07:00
uring_cmd.h	io_uring: move cancelations to be io_uring_task based	2024-11-06 13:55:38 -07:00
waitid.c	io_uring: move struct io_kiocb from task_struct to io_uring_task	2024-11-06 13:55:38 -07:00
waitid.h	io_uring: move cancelations to be io_uring_task based	2024-11-06 13:55:38 -07:00
xattr.c	vfs: retire user_path_at_empty and drop empty arg from getname_flags	2024-06-05 17:03:57 +02:00
xattr.h	io_uring: move xattr related opcodes to its own file	2022-07-24 18:39:11 -06:00