CVE-2024-53160
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-53160
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-53160.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-53160
- Downstream
- Related
- Published
- 2024-12-24T11:29:00Z
- Modified
- 2025-10-10T02:05:10.024668Z
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- rcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
rcu/kvfree: Fix data-race in _modtimer / kvfreecallrcu
KCSAN reports a data race when access the krcp->monitorwork.timer.expires variable in the scheduledelayedmonitorwork() function:
<snip> BUG: KCSAN: data-race in _modtimer / kvfreecallrcu
read to 0xffff888237d1cce8 of 8 bytes by task 10149 on cpu 1: scheduledelayedmonitorwork kernel/rcu/tree.c:3520 [inline] kvfreecallrcu+0x3b8/0x510 kernel/rcu/tree.c:3839 trieupdateelem+0x47c/0x620 kernel/bpf/lpmtrie.c:441 bpfmapupdatevalue+0x324/0x350 kernel/bpf/syscall.c:203 genericmapupdatebatch+0x401/0x520 kernel/bpf/syscall.c:1849 bpfmapdobatch+0x28c/0x3f0 kernel/bpf/syscall.c:5143 _sysbpf+0x2e5/0x7a0 _dosysbpf kernel/bpf/syscall.c:5741 [inline] _sesysbpf kernel/bpf/syscall.c:5739 [inline] _x64sysbpf+0x43/0x50 kernel/bpf/syscall.c:5739 x64syscall+0x2625/0x2d60 arch/x86/include/generated/asm/syscalls64.h:322 dosyscallx64 arch/x86/entry/common.c:52 [inline] dosyscall64+0xc9/0x1c0 arch/x86/entry/common.c:83 entrySYSCALL64after_hwframe+0x77/0x7f
write to 0xffff888237d1cce8 of 8 bytes by task 56 on cpu 0: _modtimer+0x578/0x7f0 kernel/time/timer.c:1173 addtimerglobal+0x51/0x70 kernel/time/timer.c:1330 _queuedelayedwork+0x127/0x1a0 kernel/workqueue.c:2523 queuedelayedworkon+0xdf/0x190 kernel/workqueue.c:2552 queuedelayedwork include/linux/workqueue.h:677 [inline] scheduledelayedmonitorwork kernel/rcu/tree.c:3525 [inline] kfreercumonitor+0x5e8/0x660 kernel/rcu/tree.c:3643 processonework kernel/workqueue.c:3229 [inline] processscheduledworks+0x483/0x9a0 kernel/workqueue.c:3310 workerthread+0x51d/0x6f0 kernel/workqueue.c:3391 kthread+0x1d1/0x210 kernel/kthread.c:389 retfromfork+0x4b/0x60 arch/x86/kernel/process.c:147 retfromforkasm+0x1a/0x30 arch/x86/entry/entry64.S:244
Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 56 Comm: kworker/u8:4 Not tainted 6.12.0-rc2-syzkaller-00050-g5b7c893ed5ed #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: eventsunbound kfreercu_monitor <snip>
kfreercumonitor() rearms the work if a "krcp" has to be still offloaded and this is done without holding krcp->lock, whereas the kvfreecallrcu() holds it.
Fix it by acquiring the "krcp->lock" for kfreercumonitor() so both functions do not race anymore.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/05b8ea1f16667f07c8e5843fb4bde3e49d49ead8
- https://git.kernel.org/stable/c/5ced426d97ce84299ecfcc7bd8b38f975fd11089
- https://git.kernel.org/stable/c/967a0e61910825d1fad009d836a6cb41f7402395
- https://git.kernel.org/stable/c/a23da88c6c80e41e0503e0b481a22c9eea63f263
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8fc5494ad5face62747a3937db66b00db1e5d80bFixed967a0e61910825d1fad009d836a6cb41f7402395
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8fc5494ad5face62747a3937db66b00db1e5d80bFixed05b8ea1f16667f07c8e5843fb4bde3e49d49ead8
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8fc5494ad5face62747a3937db66b00db1e5d80bFixed5ced426d97ce84299ecfcc7bd8b38f975fd11089
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8fc5494ad5face62747a3937db66b00db1e5d80bFixeda23da88c6c80e41e0503e0b481a22c9eea63f263