mirror of
https://github.com/0xMarcio/cve.git
synced 2025-11-30 18:56:19 +00:00
18 lines
1.9 KiB
Markdown
18 lines
1.9 KiB
Markdown
### [CVE-2024-26709](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26709)
|
|
|
|
|
|
|
|
|
|
### Description
|
|
|
|
In the Linux kernel, the following vulnerability has been resolved:powerpc/iommu: Fix the missing iommu_group_put() during platform domain attachThe function spapr_tce_platform_iommu_attach_dev() is missing to calliommu_group_put() when the domain is already set. This refcount leakshows up with BUG_ON() during DLPAR remove operation as: KernelBug: Kernel bug in state 'None': kernel BUG at arch/powerpc/platforms/pseries/iommu.c:100! Oops: Exception in kernel mode, sig: 5 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=8192 NUMA pSeries <snip> Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_016) hv:phyp pSeries NIP: c0000000000ff4d4 LR: c0000000000ff4cc CTR: 0000000000000000 REGS: c0000013aed5f840 TRAP: 0700 Tainted: G I (6.8.0-rc3-autotest-g99bd3cb0d12e) MSR: 8000000000029033 <SF,EE,ME,IR,DR,RI,LE> CR: 44002402 XER: 20040000 CFAR: c000000000a0d170 IRQMASK: 0 ... NIP iommu_reconfig_notifier+0x94/0x200 LR iommu_reconfig_notifier+0x8c/0x200 Call Trace: iommu_reconfig_notifier+0x8c/0x200 (unreliable) notifier_call_chain+0xb8/0x19c blocking_notifier_call_chain+0x64/0x98 of_reconfig_notify+0x44/0xdc of_detach_node+0x78/0xb0 ofdt_write.part.0+0x86c/0xbb8 proc_reg_write+0xf4/0x150 vfs_write+0xf8/0x488 ksys_write+0x84/0x140 system_call_exception+0x138/0x330 system_call_vectored_common+0x15c/0x2ecThe patch adds the missing iommu_group_put() call.
|
|
|
|
### POC
|
|
|
|
#### Reference
|
|
No PoCs from references.
|
|
|
|
#### Github
|
|
- https://github.com/fkie-cad/nvd-json-data-feeds
|
|
|