NVD Vulnerability Detail

CVE-2024-44958

Summary	In the Linux kernel, the following vulnerability has been resolved: sched/smt: Fix unbalance sched_smt_present dec/inc I got the following warn report while doing stress test: jump label: negative count! WARNING: CPU: 3 PID: 38 at kernel/jump_label.c:263 static_key_slow_try_dec+0x9d/0xb0 Call Trace: <TASK> __static_key_slow_dec_cpuslocked+0x16/0x70 sched_cpu_deactivate+0x26e/0x2a0 cpuhp_invoke_callback+0x3ad/0x10d0 cpuhp_thread_fun+0x3f5/0x680 smpboot_thread_fn+0x56d/0x8d0 kthread+0x309/0x400 ret_from_fork+0x41/0x70 ret_from_fork_asm+0x1b/0x30 </TASK> Because when cpuset_cpu_inactive() fails in sched_cpu_deactivate(), the cpu offline failed, but sched_smt_present is decremented before calling sched_cpu_deactivate(), it leads to unbalanced dec/inc, so fix it by incrementing sched_smt_present in the error path.
Publication Date	Sept. 5, 2024, 4:15 a.m.
Registration Date	Sept. 5, 2024, noon
Last Update	Oct. 11, 2024, 2:56 a.m.

Affected software configurations

Related information, measures and tools

No	URL	タグ
1	https://git.kernel.org/stable/c/2a3548c7ef2e135aee40e7e5e44e7d11b893e7c4	Patch
2	https://git.kernel.org/stable/c/2cf7665efe451e48d27953e6b5bc627d518c902b	Patch
3	https://git.kernel.org/stable/c/65727331b60197b742089855ac09464c22b96f66	Patch
4	https://git.kernel.org/stable/c/d0c87a3c6be10a57aa3463c32c3fc6b2a47c3dab	Patch
5	https://git.kernel.org/stable/c/e22f910a26cc2a3ac9c66b8e935ef2a7dd881117	Patch

Common Vulnerabilities List

JVN Vulnerability Information

Linux の Linux Kernel における脆弱性

Title	Linux の Linux Kernel における脆弱性
Summary	Linux の Linux Kernel には、不特定の脆弱性が存在します。
Possible impacts	サービス運用妨害 (DoS) 状態にされる可能性があります。
Solution	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date	July 29, 2024, midnight
Registration Date	Oct. 11, 2024, 1:57 p.m.
Last Update	Oct. 11, 2024, 1:57 p.m.

Affected System

Linux

Linux Kernel 4.14.86 以上 4.15 未満

Linux Kernel 4.19.7 以上 4.20 未満

Linux Kernel 4.20 以上 5.15.165 未満

Linux Kernel 5.16 以上 6.1.105 未満

Linux Kernel 6.11

Linux Kernel 6.2 以上 6.6.46 未満

Linux Kernel 6.7 以上 6.10.5 未満

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2024-44958	https://www.cve.org/CVERecord?id=CVE-2024-44958
National Vulnerability Database (NVD)
2	CVE-2024-44958	https://nvd.nist.gov/vuln/detail/CVE-2024-44958

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-noinfo	https://www.ipa.go.jp/security/vuln/scap/cwe.html

ベンダー情報

No	Name	URL
Kernel.org git repositories
1	sched/smt: Fix unbalance sched_smt_present dec/inc (2a3548c)	https://git.kernel.org/stable/c/2a3548c7ef2e135aee40e7e5e44e7d11b893e7c4
2	sched/smt: Fix unbalance sched_smt_present dec/inc (2cf7665)	https://git.kernel.org/stable/c/2cf7665efe451e48d27953e6b5bc627d518c902b
3	sched/smt: Fix unbalance sched_smt_present dec/inc (6572733)	https://git.kernel.org/stable/c/65727331b60197b742089855ac09464c22b96f66
4	sched/smt: Fix unbalance sched_smt_present dec/inc (d0c87a3)	https://git.kernel.org/stable/c/d0c87a3c6be10a57aa3463c32c3fc6b2a47c3dab
5	sched/smt: Fix unbalance sched_smt_present dec/inc (e22f910)	https://git.kernel.org/stable/c/e22f910a26cc2a3ac9c66b8e935ef2a7dd881117
Linux Kernel
6	Linux Kernel Archives	https://www.kernel.org

Change Log

No	Changed Details	Date of change
1	[2024年10月11日] 掲載	Oct. 11, 2024, 1:57 p.m.