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linux/io_uring
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Pavel Begunkov 0c0a4eae26 io_uring: check for overflows in io_pin_pages 
WARNING: CPU: 0 PID: 5834 at io_uring/memmap.c:144 io_pin_pages+0x149/0x180 io_uring/memmap.c:144
CPU: 0 UID: 0 PID: 5834 Comm: syz-executor825 Not tainted 6.12.0-next-20241118-syzkaller #0
Call Trace:
 <TASK>
 __io_uaddr_map+0xfb/0x2d0 io_uring/memmap.c:183
 io_rings_map io_uring/io_uring.c:2611 [inline]
 io_allocate_scq_urings+0x1c0/0x650 io_uring/io_uring.c:3470
 io_uring_create+0x5b5/0xc00 io_uring/io_uring.c:3692
 io_uring_setup io_uring/io_uring.c:3781 [inline]
 ...
 </TASK>

io_pin_pages()'s uaddr parameter came directly from the user and can be
garbage. Don't just add size to it as it can overflow.

Cc: stable@vger.kernel.org
Reported-by: syzbot+2159cbb522b02847c053@syzkaller.appspotmail.com
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/1b7520ddb168e1d537d64be47414a0629d0d8f8f.1732581026.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-11-26 07:59:17 -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: limit local tw done
2024-11-21 07:11:00 -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: check for overflows in io_pin_pages
2024-11-26 07:59:17 -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