NVD Vulnerability Detail

CVE-2024-42253

Summary	In the Linux kernel, the following vulnerability has been resolved: gpio: pca953x: fix pca953x_irq_bus_sync_unlock race Ensure that `i2c_lock' is held when setting interrupt latch and mask in pca953x_irq_bus_sync_unlock() in order to avoid races. The other (non-probe) call site pca953x_gpio_set_multiple() ensures the lock is held before calling pca953x_write_regs(). The problem occurred when a request raced against irq_bus_sync_unlock() approximately once per thousand reboots on an i.MX8MP based system. * Normal case 0-0022: write register AI\|3a {03,02,00,00,01} Input latch P0 0-0022: write register AI\|49 {fc,fd,ff,ff,fe} Interrupt mask P0 0-0022: write register AI\|08 {ff,00,00,00,00} Output P3 0-0022: write register AI\|12 {fc,00,00,00,00} Config P3 * Race case 0-0022: write register AI\|08 {ff,00,00,00,00} Output P3 0-0022: write register AI\|08 {03,02,00,00,01} * Wrong register * 0-0022: write register AI\|12 {fc,00,00,00,00} Config P3 0-0022: write register AI\|49 {fc,fd,ff,ff,fe} Interrupt mask P0
Publication Date	Aug. 8, 2024, 6:15 p.m.
Registration Date	Aug. 8, 2024, 8 p.m.
Last Update	Sept. 6, 2024, 10:38 p.m.

Affected software configurations

Related information, measures and tools

No	URL	タグ
1	https://git.kernel.org/stable/c/58a5c93bd1a6e949267400080f07e57ffe05ec34	Patch
2	https://git.kernel.org/stable/c/e2ecdddca80dd845df42376e4b0197fe97018ba2	Patch
3	https://git.kernel.org/stable/c/de7cffa53149c7b48bd1bb29b02390c9f05b7f41	Patch
4	https://git.kernel.org/stable/c/bfc6444b57dc7186b6acc964705d7516cbaf3904	Patch

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-667	不適切なロック	https://cwe.mitre.org/data/definitions/667.html

JVN Vulnerability Information

Linux の Linux Kernel におけるリソースのロックに関する脆弱性

Title	Linux の Linux Kernel におけるリソースのロックに関する脆弱性
Summary	Linux の Linux Kernel には、リソースのロックに関する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	June 21, 2024, midnight
Registration Date	Sept. 9, 2024, 3:30 p.m.
Last Update	Sept. 9, 2024, 3:30 p.m.

Affected System

Linux

Linux Kernel 6.1.101 未満

Linux Kernel 6.10

Linux Kernel 6.2 以上 6.6.42 未満

Linux Kernel 6.7 以上 6.9.11 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-2024-42253	https://www.cve.org/CVERecord?id=CVE-2024-42253
National Vulnerability Database (NVD)
2	CVE-2024-42253	https://nvd.nist.gov/vuln/detail/CVE-2024-42253

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-667	http://cwe.mitre.org/data/definitions/667.html

ベンダー情報

No	Name	URL
Kernel.org git repositories
1	gpio: pca953x: fix pca953x_irq_bus_sync_unlock race (58a5c93)	https://git.kernel.org/stable/c/58a5c93bd1a6e949267400080f07e57ffe05ec34
2	gpio: pca953x: fix pca953x_irq_bus_sync_unlock race (bfc6444)	https://git.kernel.org/stable/c/bfc6444b57dc7186b6acc964705d7516cbaf3904
3	gpio: pca953x: fix pca953x_irq_bus_sync_unlock race (de7cffa)	https://git.kernel.org/stable/c/de7cffa53149c7b48bd1bb29b02390c9f05b7f41
4	gpio: pca953x: fix pca953x_irq_bus_sync_unlock race (e2ecddd)	https://git.kernel.org/stable/c/e2ecdddca80dd845df42376e4b0197fe97018ba2
Linux Kernel
5	Linux Kernel Archives	https://www.kernel.org

Change Log

No	Changed Details	Date of change
1	[2024年09月09日] 掲載	Sept. 9, 2024, 3:30 p.m.