| Summary: |
VUL-0: CVE-2024-26587: kernel-source,kernel-source-azure,kernel-source-rt: net: netdevsim: NULL pointer dereference when destroying uninitialized PHC |
| Product: |
[Novell Products] SUSE Security Incidents
|
Reporter: |
SMASH SMASH <smash_bz> |
| Component: |
Incidents | Assignee: |
Security Team bot <security-team> |
| Status: |
RESOLVED
FIXED
|
QA Contact: |
Security Team bot <security-team> |
| Severity: |
Normal
|
|
|
| Priority: |
P5 - None
|
CC: |
carlos.lopez, denis.kirjanov
|
| Version: |
unspecified | |
|
| Target Milestone: |
--- | |
|
| Hardware: |
Other | |
|
| OS: |
Other | |
|
| URL: |
https://smash.suse.de/issue/394909/
|
| Whiteboard: |
CVSSv3.1:SUSE:CVE-2024-26587:5.5:(AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) |
|
Found By:
|
Security Response Team
|
Services Priority:
|
|
|---|
|
Business Priority:
|
|
Blocker:
|
---
|
|---|
|
Marketing QA Status:
|
---
|
IT Deployment:
|
---
|
|---|
In the Linux kernel, the following vulnerability has been resolved: net: netdevsim: don't try to destroy PHC on VFs PHC gets initialized in nsim_init_netdevsim(), which is only called if (nsim_dev_port_is_pf()). Create a counterpart of nsim_init_netdevsim() and move the mock_phc_destroy() there. This fixes a crash trying to destroy netdevsim with VFs instantiated, as caught by running the devlink.sh test: BUG: kernel NULL pointer dereference, address: 00000000000000b8 RIP: 0010:mock_phc_destroy+0xd/0x30 Call Trace: <TASK> nsim_destroy+0x4a/0x70 [netdevsim] __nsim_dev_port_del+0x47/0x70 [netdevsim] nsim_dev_reload_destroy+0x105/0x120 [netdevsim] nsim_drv_remove+0x2f/0xb0 [netdevsim] device_release_driver_internal+0x1a1/0x210 bus_remove_device+0xd5/0x120 device_del+0x159/0x490 device_unregister+0x12/0x30 del_device_store+0x11a/0x1a0 [netdevsim] kernfs_fop_write_iter+0x130/0x1d0 vfs_write+0x30b/0x4b0 ksys_write+0x69/0xf0 do_syscall_64+0xcc/0x1e0 entry_SYSCALL_64_after_hwframe+0x6f/0x77 References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-26587 https://git.kernel.org/stable/c/08aca65997fb6f233066883b1f1e653bcb1f26ca https://git.kernel.org/stable/c/c5068e442eed063d2f1658e6b6d3c1c6fcf1e588 https://git.kernel.org/stable/c/ea937f77208323d35ffe2f8d8fc81b00118bfcda https://www.cve.org/CVERecord?id=CVE-2024-26587