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nvd416baaa9-dc9f-4396-8d5f-8c081fb06d67NVD:CVE-2024-26764
HistoryApr 03, 2024 - 5:15 p.m.

CVE-2024-26764

2024-04-0317:15:52
416baaa9-dc9f-4396-8d5f-8c081fb06d67
web.nvd.nist.gov
6
linux kernel
vulnerability
fs/aio
io_uring
libaio

AI Score

7.3

Confidence

High

EPSS

0

Percentile

13.0%

In the Linux kernel, the following vulnerability has been resolved:

fs/aio: Restrict kiocb_set_cancel_fn() to I/O submitted via libaio

If kiocb_set_cancel_fn() is called for I/O submitted via io_uring, the
following kernel warning appears:

WARNING: CPU: 3 PID: 368 at fs/aio.c:598 kiocb_set_cancel_fn+0x9c/0xa8
Call trace:
kiocb_set_cancel_fn+0x9c/0xa8
ffs_epfile_read_iter+0x144/0x1d0
io_read+0x19c/0x498
io_issue_sqe+0x118/0x27c
io_submit_sqes+0x25c/0x5fc
__arm64_sys_io_uring_enter+0x104/0xab0
invoke_syscall+0x58/0x11c
el0_svc_common+0xb4/0xf4
do_el0_svc+0x2c/0xb0
el0_svc+0x2c/0xa4
el0t_64_sync_handler+0x68/0xb4
el0t_64_sync+0x1a4/0x1a8

Fix this by setting the IOCB_AIO_RW flag for read and write I/O that is
submitted by libaio.