CVE-2023-53291
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-53291
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53291.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-53291
- Downstream
- Related
- Published
- 2025-09-16T08:11:23Z
- Modified
- 2025-10-16T17:24:02.570442Z
- Summary
- rcu/rcuscale: Stop kfree_scale_thread thread(s) after unloading rcuscale
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
rcu/rcuscale: Stop kfreescalethread thread(s) after unloading rcuscale
Running the 'kfreercutest' test case [1] results in a splat [2]. The root cause is the kfreescalethread thread(s) continue running after unloading the rcuscale module. This commit fixes that isue by invoking kfreescalecleanup() from rcuscalecleanup() when removing the rcuscale module.
[1] modprobe rcuscale kfreercutest=1 // After some time rmmod rcuscale rmmod torture
[2] BUG: unable to handle page fault for address: ffffffffc0601a87 #PF: supervisor instruction fetch in kernel mode #PF: errorcode(0x0010) - not-present page PGD 11de4f067 P4D 11de4f067 PUD 11de51067 PMD 112f4d067 PTE 0 Oops: 0010 [#1] PREEMPT SMP NOPTI CPU: 1 PID: 1798 Comm: kfreescalethr Not tainted 6.3.0-rc1-rcu+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 RIP: 0010:0xffffffffc0601a87 Code: Unable to access opcode bytes at 0xffffffffc0601a5d. RSP: 0018:ffffb25bc2e57e18 EFLAGS: 00010297 RAX: 0000000000000000 RBX: ffffffffc061f0b6 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff962fd0de RDI: ffffffff962fd0de RBP: ffffb25bc2e57ea8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 000000000000000a R15: 00000000001c1dbe FS: 0000000000000000(0000) GS:ffff921fa2200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffc0601a5d CR3: 000000011de4c006 CR4: 0000000000370ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ? kvfreecallrcu+0xf0/0x3a0 ? kthread+0xf3/0x120 ? kthreadcompleteandexit+0x20/0x20 ? retfromfork+0x1f/0x30 </TASK> Modules linked in: rfkill sunrpc ... [last unloaded: torture] CR2: ffffffffc0601a87 ---[ end trace 0000000000000000 ]---
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/1dd7547c7610723b2b6afe1a3c4ddb2bde63387c
- https://git.kernel.org/stable/c/23fc8df26dead16687ae6eb47b0561a4a832e2f6
- https://git.kernel.org/stable/c/29b1da4f90fc42c91beb4e400d926194925ad31b
- https://git.kernel.org/stable/c/604d6a5ff718874904b0fe614878a42b42c0d699
- https://git.kernel.org/stable/c/b8a6ba524d41f4da102e65f90498d9a910839621
- https://git.kernel.org/stable/c/f766d45ab294871a3d588ee76c666852f151cad9
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
-
Introducede6e78b004fa7e0ab455d46d27f218bf6ce178a18Fixed604d6a5ff718874904b0fe614878a42b42c0d699
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede6e78b004fa7e0ab455d46d27f218bf6ce178a18Fixedf766d45ab294871a3d588ee76c666852f151cad9
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede6e78b004fa7e0ab455d46d27f218bf6ce178a18Fixedb8a6ba524d41f4da102e65f90498d9a910839621
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede6e78b004fa7e0ab455d46d27f218bf6ce178a18Fixed1dd7547c7610723b2b6afe1a3c4ddb2bde63387c
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede6e78b004fa7e0ab455d46d27f218bf6ce178a18Fixed29b1da4f90fc42c91beb4e400d926194925ad31b
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducede6e78b004fa7e0ab455d46d27f218bf6ce178a18Fixed23fc8df26dead16687ae6eb47b0561a4a832e2f6