CVE-2024-26999
Apple Linux pmac_zilog Rx Irq Flood Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: serial/pmac_zilog: Remove flawed mitigation for rx irq flood The mitigation was intended to stop the irq completely. That may be better than a hard lock-up but it turns out that you get a crash anyway if you're using pmac_zilog as a serial console: ttyPZ0: pmz: rx irq flood ! BUG: spinlock recursion on CPU#0, swapper/0 That's because the pr_err() call in pmz_receive_chars() results in pmz_console_write() attempting to lock a spinlock already locked in pmz_interrupt(). With CONFIG_DEBUG_SPINLOCK=y, this produces a fatal BUG splat. The spinlock in question is the one in struct uart_port. Even when it's not fatal, the serial port rx function ceases to work. Also, the iteration limit doesn't play nicely with QEMU, as can be seen in the bug report linked below. A web search for other reports of the error message "pmz: rx irq flood" didn't produce anything. So I don't think this code is needed any more. Remove it.
INFO
Published Date :
May 1, 2024, 6:15 a.m.
Last Modified :
Nov. 21, 2024, 9:03 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-26999.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-26999 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-26999 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 04, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-667 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (excluding) 6.8.8 *cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 from (excluding) 6.1.88 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.12 from (excluding) 5.15.157 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 from (excluding) 6.6.29 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added Reference Type CVE: https://git.kernel.org/stable/c/1be3226445362bfbf461c92a5bcdb1723f2e4907 Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/1be3226445362bfbf461c92a5bcdb1723f2e4907 Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/52aaf1ff14622a04148dbb9ccce6d9de5d534ea7 Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/52aaf1ff14622a04148dbb9ccce6d9de5d534ea7 Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/69a02273e288011b521ee7c1f3ab2c23fda633ce Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/69a02273e288011b521ee7c1f3ab2c23fda633ce Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/7a3bbe41efa55323b6ea3c35fa15941d4dbecdef Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7a3bbe41efa55323b6ea3c35fa15941d4dbecdef Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ab86cf6f8d24e63e9aca23da5108af1aa5483928 Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ab86cf6f8d24e63e9aca23da5108af1aa5483928 Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/bbaafbb4651fede8d3c3881601ecaa4f834f9d3f Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/bbaafbb4651fede8d3c3881601ecaa4f834f9d3f Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ca09dfc3cfdf89e6af3ac24e1c6c0be5c575a729 Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ca09dfc3cfdf89e6af3ac24e1c6c0be5c575a729 Types: Mailing List, Patch Added Reference Type CVE: https://git.kernel.org/stable/c/d679c816929d62af51c8e6d7fc0e165c9412d2f3 Types: Mailing List, Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d679c816929d62af51c8e6d7fc0e165c9412d2f3 Types: Mailing List, Patch Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Types: Mailing List -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/1be3226445362bfbf461c92a5bcdb1723f2e4907 Added Reference https://git.kernel.org/stable/c/52aaf1ff14622a04148dbb9ccce6d9de5d534ea7 Added Reference https://git.kernel.org/stable/c/69a02273e288011b521ee7c1f3ab2c23fda633ce Added Reference https://git.kernel.org/stable/c/7a3bbe41efa55323b6ea3c35fa15941d4dbecdef Added Reference https://git.kernel.org/stable/c/ab86cf6f8d24e63e9aca23da5108af1aa5483928 Added Reference https://git.kernel.org/stable/c/bbaafbb4651fede8d3c3881601ecaa4f834f9d3f Added Reference https://git.kernel.org/stable/c/ca09dfc3cfdf89e6af3ac24e1c6c0be5c575a729 Added Reference https://git.kernel.org/stable/c/d679c816929d62af51c8e6d7fc0e165c9412d2f3 Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 05, 2024
Action Type Old Value New Value Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 03, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/69a02273e288011b521ee7c1f3ab2c23fda633ce [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d679c816929d62af51c8e6d7fc0e165c9412d2f3 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ab86cf6f8d24e63e9aca23da5108af1aa5483928 [No types assigned] Removed Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/ Removed Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/ Removed Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/ -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 03, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/ [No types assigned] Added Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/ [No types assigned] Added Reference kernel.org https://lists.fedoraproject.org/archives/list/[email protected]/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/ [No types assigned] -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 01, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: serial/pmac_zilog: Remove flawed mitigation for rx irq flood The mitigation was intended to stop the irq completely. That may be better than a hard lock-up but it turns out that you get a crash anyway if you're using pmac_zilog as a serial console: ttyPZ0: pmz: rx irq flood ! BUG: spinlock recursion on CPU#0, swapper/0 That's because the pr_err() call in pmz_receive_chars() results in pmz_console_write() attempting to lock a spinlock already locked in pmz_interrupt(). With CONFIG_DEBUG_SPINLOCK=y, this produces a fatal BUG splat. The spinlock in question is the one in struct uart_port. Even when it's not fatal, the serial port rx function ceases to work. Also, the iteration limit doesn't play nicely with QEMU, as can be seen in the bug report linked below. A web search for other reports of the error message "pmz: rx irq flood" didn't produce anything. So I don't think this code is needed any more. Remove it. Added Reference kernel.org https://git.kernel.org/stable/c/7a3bbe41efa55323b6ea3c35fa15941d4dbecdef [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/bbaafbb4651fede8d3c3881601ecaa4f834f9d3f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/52aaf1ff14622a04148dbb9ccce6d9de5d534ea7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ca09dfc3cfdf89e6af3ac24e1c6c0be5c575a729 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/1be3226445362bfbf461c92a5bcdb1723f2e4907 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-26999 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-26999
weaknesses.