medium CVSS 5.5

CVE-2024-38607·Kernel vulnerability

In the Linux kernel, the following vulnerability has been resolved: macintosh/via-macii: Fix "BUG: sleeping function called from invalid context" The via-macii ADB driver calls request_irq() after disabling hard interrupts. But disabling interrupts isn't necessary here because the VIA shift register interrupt was masked during VIA1 initialization.

Severity
medium
Software
Kernel
Fixed in
6.9.3
Published
2024-06-19

Affected versions

From: 6.9

Until: 6.9.3

Fixed in: 6.9.3

How to fix this CVE

Update your Linux kernel to version 6.9.3 or later to resolve a scheduling context violation in the macintosh/via-macii ADB driver. The fix removes unnecessary interrupt disabling during driver initialization, which was causing kernel warnings and potential stability issues on affected Macintosh systems. Apply this update through your distribution's package manager immediately.

sudo dnf update kernel

Defensia detects this vulnerability

How to check if you are affected

  1. Step 1: Check your kernel version with 'uname -r' and compare against 6.9.0 through 6.9.2
  2. Step 2: Verify if macintosh ADB hardware is present on your system with 'dmesg | grep -i via-macii' or 'cat /proc/interrupts | grep adb'
  3. Step 3: Search system logs for 'BUG: sleeping function called from invalid context' and 'request_irq' warnings using 'grep -r "sleeping function" /var/log/'
  4. Step 4: After updating to 6.9.3+, reboot and run 'uname -r' to confirm the new kernel version is active, then check dmesg for absence of the earlier warnings

FAQ

What is CVE-2024-38607?

This vulnerability affects the via-macii ADB (Apple Desktop Bus) driver in the Linux kernel, where improper interrupt context handling during driver initialization could trigger scheduling warnings and potentially destabilize the system on affected Macintosh hardware.

Is CVE-2024-38607 being actively exploited?

No, this vulnerability is not listed on the CISA Known Exploited Vulnerabilities catalog and has no publicly available exploits. It is a stability and reliability issue rather than a security boundary violation.

What versions of Kernel are affected by CVE-2024-38607?

Linux kernel versions 6.9 through 6.9.2 are vulnerable. Version 6.9.3 and later contain the fix.

How do I check if my server is vulnerable to CVE-2024-38607?

Run 'uname -r' to check your kernel version; if it shows 6.9.0, 6.9.1, or 6.9.2, you are vulnerable. Then verify ADB hardware presence with 'dmesg | grep via-macii'.

Does Defensia detect CVE-2024-38607?

Yes — Defensia's CVE advisory scanner compares installed package versions against the NVD database. If the Linux kernel is installed on a monitored server running 6.9.0 through 6.9.2, CVE-2024-38607 will appear in your dashboard with remediation steps.

Related Kernel CVEs

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CVE-2026-100075CVSS 9.8In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters When srpt_alloc_rw_ctxs() fails partway through a multi-buffer indirect descriptor, the unwind path destroys RDMA contexts but leaves stale n_rw_ctx and n_rdma values (and a dangling rw_ctxs pointer). Later sq_wr_avail accounting in srpt_queue_response() or srpt_write_pending() can then subtract the wrong number of send queue credits. Reset the counters and clear rw_ctxs after freeing the heap allocation before returning an error.
CVE-2026-64033CVSS 9.8In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs: Fix use-after-free in path file creation cleanup In the error path of rtrs_srv_create_path_files(), the sysfs root folders may already have been created and srv_path->kobj may already have been initialized. If a later step fails, the cleanup currently calls kobject_put(&srv_path->kobj) before rtrs_srv_destroy_once_sysfs_root_folders(srv_path). kobject_put() may drop the last reference to srv_path->kobj and invoke the release callback, rtrs_srv_release(), which frees srv_path. The following call to rtrs_srv_destroy_once_sysfs_root_folders(srv_path) then dereferences srv_path internally to access srv_path->srv, resulting in a use-after-free. This failure path is reached before rtrs_srv_create_path_files() returns success, so the successful-path lifetime handling is not involved. Fix this by destroying the sysfs root folders before calling kobject_put(&srv_path->kobj), so srv_path is still valid while the helper accesses it. This issue was found by a static analysis tool I am developing.
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References

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