CVE-2024-26605
- Source
- https://cve.org/CVERecord?id=CVE-2024-26605
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26605.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-26605
- Downstream
BELL (1)
DEBIAN (1)
openSUSE (2)
RHSA (1)
UBUNTU (1)
- Related
- Published
- 2024-02-24T15:17:13Z
- Modified
- 2026-10-20T11:03:47Z
- Summary
- PCI/ASPM: Fix deadlock when enabling ASPM
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
PCI/ASPM: Fix deadlock when enabling ASPM
A last minute revert in 6.7-final introduced a potential deadlock when enabling ASPM during probe of Qualcomm PCIe controllers as reported by lockdep:
============================================ WARNING: possible recursive locking detected 6.7.0 #40 Not tainted
kworker/u16:5/90 is trying to acquire lock: ffffacfa78ced000 (pci_bus_sem){++++}-{3:3}, at: pcie_aspm_pm_state_change+0x58/0xdc
but task is already holding lock:ffffacfa78ced000 (pci_bus_sem){++++}-{3:3}, at: pci_walk_bus+0x34/0xbc
other info that might help us debug this:Possible unsafe locking scenario:
CPU0 ---- lock(pci_bus_sem); lock(pci_bus_sem); *** DEADLOCK ***Call trace: print_deadlock_bug+0x25c/0x348 __lock_acquire+0x10a4/0x2064 lock_acquire+0x1e8/0x318 down_read+0x60/0x184 pcie_aspm_pm_state_change+0x58/0xdc pci_set_full_power_state+0xa8/0x114 pci_set_power_state+0xc4/0x120 qcom_pcie_enable_aspm+0x1c/0x3c [pcie_qcom] pci_walk_bus+0x64/0xbc qcom_pcie_host_post_init_2_7_0+0x28/0x34 [pcie_qcom]
The deadlock can easily be reproduced on machines like the Lenovo ThinkPad X13s by adding a delay to increase the race window during asynchronous probe where another thread can take a write lock.
Add a new pci_set_power_state_locked() and associated helper functions that can be called with the PCI bus semaphore held to avoid taking the read lock twice.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26605.json" }- References
-
- https://git.kernel.org/stable/c/0f7908a016c092cfdaa16d785fa5099d867bc1a3
- https://git.kernel.org/stable/c/1e560864159d002b453da42bd2c13a1805515a20
- https://git.kernel.org/stable/c/b0f4478838be1f1d330061201898fef65bf8fd7c
- https://git.kernel.org/stable/c/ef90508574d7af48420bdc5f7b9a4f1cdd26bc70
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26605.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-26605
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedb9c370b61d735a0e5390c42771e7eb21413f7868Fixed0f7908a016c092cfdaa16d785fa5099d867bc1a3
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8cc22ba3f77c59df5f1ac47d62df51efb28cd868Fixedb0f4478838be1f1d330061201898fef65bf8fd7c
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf93e71aea6c60ebff8adbd8941e678302d377869Fixedef90508574d7af48420bdc5f7b9a4f1cdd26bc70Fixed1e560864159d002b453da42bd2c13a1805515a20
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.1.72Fixed6.1.88
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.6.11Fixed6.6.29
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.15.147Fixed5.16
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced1f2f662c8bec75d1311e063efaa9107435cf16c8