| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <2025022626-CVE-2022-49685-3634@gregkh> Date: Wed, 26 Feb 2025 03:24:08 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2022-49685: iio: trigger: sysfs: fix use-after-free on remove Description =========== In the Linux kernel, the following vulnerability has been resolved: iio: trigger: sysfs: fix use-after-free on remove Ensure that the irq_work has completed before the trigger is freed. ================================================================== BUG: KASAN: use-after-free in irq_work_run_list Read of size 8 at addr 0000000064702248 by task python3/25 Call Trace: irq_work_run_list irq_work_tick update_process_times tick_sched_handle tick_sched_timer __hrtimer_run_queues hrtimer_interrupt Allocated by task 25: kmem_cache_alloc_trace iio_sysfs_trig_add dev_attr_store sysfs_kf_write kernfs_fop_write_iter new_sync_write vfs_write ksys_write sys_write Freed by task 25: kfree iio_sysfs_trig_remove dev_attr_store sysfs_kf_write kernfs_fop_write_iter new_sync_write vfs_write ksys_write sys_write ================================================================== The Linux kernel CVE team has assigned CVE-2022-49685 to this issue. Affected and fixed versions =========================== Issue introduced in 3.7 with commit f38bc926d022ebd67baad6ac7fc22c95fbc6238c and fixed in 4.9.321 with commit d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2 Issue introduced in 3.7 with commit f38bc926d022ebd67baad6ac7fc22c95fbc6238c and fixed in 4.14.286 with commit fd5d8fb298a2866c337da635c79d63c3afabcaf7 Issue introduced in 3.7 with commit f38bc926d022ebd67baad6ac7fc22c95fbc6238c and fixed in 4.19.250 with commit 31ff3309b47d98313c61b8301bf595820cc3cc33 Issue introduced in 3.7 with commit f38bc926d022ebd67baad6ac7fc22c95fbc6238c and fixed in 5.4.202 with commit 5e39397d60dacc7f5d81d442c1c958eaaaf31128 Issue introduced in 3.7 with commit f38bc926d022ebd67baad6ac7fc22c95fbc6238c and fixed in 5.10.127 with commit b07a30a774b3c3e584a68dc91779c68ea2da4813 Issue introduced in 3.7 with commit f38bc926d022ebd67baad6ac7fc22c95fbc6238c and fixed in 5.15.51 with commit 4687c3f955240ca2a576bdc3f742d4d915b6272d Issue introduced in 3.7 with commit f38bc926d022ebd67baad6ac7fc22c95fbc6238c and fixed in 5.18.8 with commit 4ef1e521be610b720daeb7cf899fedc7db0274c4 Issue introduced in 3.7 with commit f38bc926d022ebd67baad6ac7fc22c95fbc6238c and fixed in 5.19 with commit 78601726d4a59a291acc5a52da1d3a0a6831e4e8 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2022-49685 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/iio/trigger/iio-trig-sysfs.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/d6111e7bdb8ec27eb43d01c4cd4ff1620a75f7f2 https://git.kernel.org/stable/c/fd5d8fb298a2866c337da635c79d63c3afabcaf7 https://git.kernel.org/stable/c/31ff3309b47d98313c61b8301bf595820cc3cc33 https://git.kernel.org/stable/c/5e39397d60dacc7f5d81d442c1c958eaaaf31128 https://git.kernel.org/stable/c/b07a30a774b3c3e584a68dc91779c68ea2da4813 https://git.kernel.org/stable/c/4687c3f955240ca2a576bdc3f742d4d915b6272d https://git.kernel.org/stable/c/4ef1e521be610b720daeb7cf899fedc7db0274c4 https://git.kernel.org/stable/c/78601726d4a59a291acc5a52da1d3a0a6831e4e8
Powered by blists - more mailing lists