CVE-2024-26764

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

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fs/aio: restringe kiocb_set_cancel_fn() a E/S enviadas a través de libaio. Si se llama a kiocb_set_cancel_fn() para E/S enviadas a través de io_uring, aparece la siguiente advertencia del kernel: ADVERTENCIA: CPU : 3 PID: 368 en fs/aio.c:598 kiocb_set_cancel_fn+0x9c/0xa8 Rastreo de llamadas: 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 Solucionar esto configurando el IOC Bandera B_AIO_RW para E/S de lectura y escritura enviada por libaio .

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-02-19 CVE Reserved
2024-04-03 CVE Published
2024-04-04 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (10)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/337b543e274fe7a8f47df3c8293cc6686ffa620f	2024-03-01
https://git.kernel.org/stable/c/b4eea7a05ee0ab5ab0514421e6ba8c5d249cf942	2024-03-01
https://git.kernel.org/stable/c/ea1cd64d59f22d6d13f367d62ec6e27b9344695f	2024-03-01
https://git.kernel.org/stable/c/d7b6fa97ec894edd02f64b83e5e72e1aa352f353	2024-03-01
https://git.kernel.org/stable/c/18f614369def2a11a52f569fe0f910b199d13487	2024-03-01
https://git.kernel.org/stable/c/e7e23fc5d5fe422827c9a43ecb579448f73876c7	2024-03-01
https://git.kernel.org/stable/c/1dc7d74fe456944a9b1c57bd776280249f441ac6	2024-03-01
https://git.kernel.org/stable/c/b820de741ae48ccf50dd95e297889c286ff4f760	2024-02-21

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 4.19.308 Search vendor "Linux" for product "Linux Kernel" and version " < 4.19.308"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.4.270 Search vendor "Linux" for product "Linux Kernel" and version " < 5.4.270"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.10.211 Search vendor "Linux" for product "Linux Kernel" and version " < 5.10.211"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.15.150 Search vendor "Linux" for product "Linux Kernel" and version " < 5.15.150"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.1.80 Search vendor "Linux" for product "Linux Kernel" and version " < 6.1.80"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.6.19 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.19"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.7.7 Search vendor "Linux" for product "Linux Kernel" and version " < 6.7.7"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.8 Search vendor "Linux" for product "Linux Kernel" and version " < 6.8"		en		Affected