CVEvulnerability
CVE-2024-35816
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2024-05-17
- 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
- Weaknesses
- CWE-401
Description
In the Linux kernel, the following vulnerability has been resolved:
firewire: ohci: prevent leak of left-over IRQ on unbind
Commit 5a95f1ded28691e6 ("firewire: ohci: use devres for requested IRQ")
also removed the call to free_irq() in pci_remove(), leading to a
leftover irq of devm_request_irq() at pci_disable_msi() in pci_remove()
when unbinding the driver from the device
remove_proc_entry: removing non-empty directory 'irq/136', leaking at
least 'firewire_ohci'
Call Trace:
? remove_proc_entry+0x19c/0x1c0
? __warn+0x81/0x130
? remove_proc_entry+0x19c/0x1c0
? report_bug+0x171/0x1a0
? console_unlock+0x78/0x120
? handle_bug+0x3c/0x80
? exc_invalid_op+0x17/0x70
? asm_exc_invalid_op+0x1a/0x20
? remove_proc_entry+0x19c/0x1c0
unregister_irq_proc+0xf4/0x120
free_desc+0x3d/0xe0
? kfree+0x29f/0x2f0
irq_free_descs+0x47/0x70
msi_domain_free_locked.part.0+0x19d/0x1d0
msi_domain_free_irqs_all_locked+0x81/0xc0
pci_free_msi_irqs+0x12/0x40
pci_disable_msi+0x4c/0x60
pci_remove+0x9d/0xc0 [firewire_ohci
01b483699bebf9cb07a3d69df0aa2bee71db1b26]
pci_device_remove+0x37/0xa0
device_release_driver_internal+0x19f/0x200
unbind_store+0xa1/0xb0
remove irq with devm_free_irq() before pci_disable_msi()
also remove it in fail_msi: of pci_probe() as this would lead to
an identical leak
Affected configurations
• linux linux kernel (>= 6.5 < 6.6.24)
• linux linux kernel (>= 6.7 < 6.7.12)
• linux linux kernel 6.8
Related
Weakness · CWE (1)
- CWE-401 Missing Release of Memory after Effective Lifetime weakness
References
- https://git.kernel.org/stable/c/318f6d53dd425c400e35f1a9b7af682c2c6a66d6 Patch
- https://git.kernel.org/stable/c/43c70cbc2502cf2557105c662eeed6a15d082b88 Patch
- https://git.kernel.org/stable/c/575801663c7dc38f826212b39e3b91a4a8661c33 Patch
- https://git.kernel.org/stable/c/318f6d53dd425c400e35f1a9b7af682c2c6a66d6 Patch
- https://git.kernel.org/stable/c/43c70cbc2502cf2557105c662eeed6a15d082b88 Patch
- https://git.kernel.org/stable/c/575801663c7dc38f826212b39e3b91a4a8661c33 Patch