CVE-2022-48891

regulator: da9211: Use irq handler when ready

MEDIUM

5.5

CVSS Score

Published: August 21, 2024 at 06:10 AM UTC

Updated: June 17, 2026 at 05:16 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: regulator: da9211: Use irq handler when ready If the system does not come from reset (like when it is kexec()), the regulator might have an IRQ waiting for us. If we enable the IRQ handler before its structures are ready, we crash. This patch fixes: [ 1.141839] Unable to handle kernel read from unreadable memory at virtual address 0000000000000078 [ 1.316096] Call trace: [ 1.316101] blocking_notifier_call_chain+0x20/0xa8 [ 1.322757] cpu cpu0: dummy supplies not allowed for exclusive requests [ 1.327823] regulator_notifier_call_chain+0x1c/0x2c [ 1.327825] da9211_irq_handler+0x68/0xf8 [ 1.327829] irq_thread+0x11c/0x234 [ 1.327833] kthread+0x13c/0x154

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

v < 4.14.3033.17 ≤ v < 4.14.3033.17 ≤ v < 4.19.2703.17 ≤ v < 5.10.1643.17 ≤ v < 5.15.893.17 ≤ v < 5.4.2293.17 ≤ v < 6.1.73.17 ≤ v < 6.24.15 ≤ v < 4.19.2704.20 ≤ v < 5.4.2295.11 ≤ v < 5.15.895.16 ≤ v < 6.1.75.5 ≤ v < 5.10.1641028a37daa148cc6cf85aa2aecb4390ddf1e1e566.2 rc1 6.2 rc2 6.2 rc3

Vendor states this is fixed in 02228f6aa6a64d588bc31e3267d05ff184d772eb (fixed)

Vendor states this is fixed in 1c1afcb8839b91c09d211ea304faa269763b1f91 (fixed)

Vendor states this is fixed in 470f6a9175f13a53810734658c35cc5bba33be01 (fixed)

Vendor states this is fixed in ad1336274f733a7cb1f87b5c5908165a2c14df53 (fixed)

Vendor states this is fixed in d443308edbfb6e9e757b478af908515110d1efd5 (fixed)

Vendor states this is fixed in d4aa749e046435f054e94ebf50cad143d6229fae (fixed)

Vendor states this is fixed in f75cde714e0a67f73ef169aa50d4ed77d04f7236 (fixed)

Vendor states this is fixed in 3.17 (unaffected)

Vendor states this is fixed in 4.14.303 (unaffected)

Vendor states this is fixed in 4.19.270 (unaffected)

Vendor states this is fixed in 5.10.164 (unaffected)

Vendor states this is fixed in 5.15.89 (unaffected)