Vulnerability in Linux
CVE-2023-53670
In the Linux kernel, the following vulnerability has been resolved: nvme-core: fix dev_pm_qos memleak Call dev_pm_qos_hide_latency_tolerance() in the error unwind patch to avoid following kmemleak:- blktests (master) # kmemleak-clear; ./check nvme/044; blktests (master) # kmemleak-scan ; kmemleak-show nvme/044 (Test bi-directional authentication) [passed] runtime 2.111s ... 2.124s unreferenced object 0xffff888110c46240 (size 96): comm "nvme", pid 33461, jiffies 4345365353 (age 75.586s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000069ac2cec>] kmalloc_trace+0x25/0x90 [<000000006acc66d5>] dev_pm_qos_update_user_latency_tolerance+0x6f/0x100 [<00000000cc376ea7>] nvme_init_ctrl+0x38e/0x410 [nvme_core] [<000000007df61b4b>] 0xffffffffc05e88b3 [<00000000d152b985>] 0xffffffffc05744cb [<00000000f04a4041>] vfs_write+0xc5/0x3c0 [<00000000f9491baf>] ksys_write+0x5f/0xe0 [<000000001c46513d>] do_syscall_64+0x3b/0x90 [<00000000ecf348fe>] entry_SYSCALL_64_after_hwframe+0x72/0xdc
EPSS: 0.001 (4.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux — versions f50fff73d620cd6e8f48bc58d4f1c944615a3fea, 6.0, 0
- Linux Linux_kernel
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2023-53670?
- CVE-2023-53670 is a medium-severity vulnerability in Linux, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2025-10-07.
- How severe is CVE-2023-53670?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-53670 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.