CVE-2024-26764 Affecting kernel-64kb-devel package, versions <6.4.0-150600.23.7.3
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Test your applications- Snyk ID SNYK-SLES156-KERNEL64KBDEVEL-7712580
- published 20 Aug 2024
- disclosed 25 Jun 2024
Introduced: 25 Jun 2024
CVE-2024-26764 Open this link in a new tabHow to fix?
Upgrade SLES:15.6 kernel-64kb-devel to version 6.4.0-150600.23.7.3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-64kb-devel package and not the kernel-64kb-devel package as distributed by SLES.
See How to fix? for SLES:15.6 relevant fixed versions and status.
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.
References
- https://www.suse.com/security/cve/CVE-2024-26764.html
- https://bugzilla.suse.com/1222721
- https://git.kernel.org/stable/c/18f614369def2a11a52f569fe0f910b199d13487
- https://git.kernel.org/stable/c/1dc7d74fe456944a9b1c57bd776280249f441ac6
- https://git.kernel.org/stable/c/337b543e274fe7a8f47df3c8293cc6686ffa620f
- https://git.kernel.org/stable/c/b4eea7a05ee0ab5ab0514421e6ba8c5d249cf942
- https://git.kernel.org/stable/c/b820de741ae48ccf50dd95e297889c286ff4f760
- https://git.kernel.org/stable/c/d7b6fa97ec894edd02f64b83e5e72e1aa352f353
- https://git.kernel.org/stable/c/e7e23fc5d5fe422827c9a43ecb579448f73876c7
- https://git.kernel.org/stable/c/ea1cd64d59f22d6d13f367d62ec6e27b9344695f
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html