CVEvulnerability
CVE-2022-48891
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2024-08-21
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 configurations
• linux linux kernel (< 4.14.303)
• linux linux kernel (>= 4.15 < 4.19.270)
• linux linux kernel (>= 4.20 < 5.4.229)
• linux linux kernel (>= 5.5 < 5.10.164)
• linux linux kernel (>= 5.11 < 5.15.89)
• linux linux kernel (>= 5.16 < 6.1.7)
• linux linux kernel 6.2
References
- https://git.kernel.org/stable/c/02228f6aa6a64d588bc31e3267d05ff184d772eb Patch
- https://git.kernel.org/stable/c/1c1afcb8839b91c09d211ea304faa269763b1f91 Patch
- https://git.kernel.org/stable/c/470f6a9175f13a53810734658c35cc5bba33be01 Patch
- https://git.kernel.org/stable/c/ad1336274f733a7cb1f87b5c5908165a2c14df53 Patch
- https://git.kernel.org/stable/c/d443308edbfb6e9e757b478af908515110d1efd5 Patch
- https://git.kernel.org/stable/c/d4aa749e046435f054e94ebf50cad143d6229fae Patch
- https://git.kernel.org/stable/c/f75cde714e0a67f73ef169aa50d4ed77d04f7236 Patch