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Linux KernelOperating system · Linux

CVE-2024-50078

MEDIUM · 5.5 CVSS v3.1 Published 2024-10-29
Fix available
A fix is available. Upgrade to 6.1.114 / 6.6.58 or later.
See remediation →
57/100
Remediation priority · Elevated
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Call iso_exit() on module unload If iso_init() has been called, iso_exit() must be called on module unload. Without that, the struct proto that iso_init() registered with proto_register() becomes invalid, which could cause unpredictable problems later. In my case, with CONFIG_LIST_HARDENED and CONFIG_BUG_ON_DATA_CORRUPTION enabled, loading the module again usually triggers this BUG(): list_add corruption. next->prev should be prev (ffffffffb5355fd0), but was 0000000000000068. (next=ffffffffc0a010d0). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:29! Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI CPU: 1 PID: 4159 Comm: modprobe Not tainted 6.10.11-4+bt2-ao-desktop #1 RIP: 0010:__list_add_valid_or_report+0x61/0xa0 ... __list_add_valid_or_report+0x61/0xa0 proto_register+0x299/0x320 hci_sock_init+0x16/0xc0 [bluetooth] bt_init+0x68/0xd0 [bluetooth] __pfx_bt_init+0x10/0x10 [bluetooth] do_one_initcall+0x80/0x2f0 do_init_module+0x8b/0x230 __do_sys_init_module+0x15f/0x190 do_syscall_64+0x68/0x110 ...

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Linux KernelOperating system
Affected:>= 6.0, < 6.1.114>= 6.2, < 6.6.58>= 6.7, < 6.11.5= 6.12

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 6.1.114 / 6.6.58 / 6.11.5 or later
Fixed in 6.1.1146.6.586.11.5
Vendor patch git.kernel.org →
Recommended fix High confidence

Upgrade to kernel 6.1.114+ (for 6.0-6.1 kernels), 6.6.58+ (for 6.2-6.6 kernels), 6.11.5+ (for 6.7-6.11 kernels), or the next stable release after 6.12

  1. Identify the currently running kernel version using `uname -r`
  2. If running kernel 6.0.x - upgrade to kernel version 6.1.114 or later
  3. If running kernel 6.1.x - upgrade to kernel version 6.1.114 or later
  4. If running kernel 6.2.x through 6.6.x - upgrade to kernel version 6.6.58 or later
  5. If running kernel 6.7.x through 6.11.x - upgrade to kernel version 6.11.5 or later
  6. If running kernel 6.12.x - upgrade to the next stable kernel release after 6.12
  7. Reboot into the new kernel to apply the fix
  8. Verify the fix by checking that the iso_exit function is properly called on module unload
Caveat Kernel upgrades may require rebuilding third-party kernel modules; ensure compatibility with the new kernel version

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,600. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-50078 in production — separate from our analysis above.

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