net: phy: at803x: fix NULL pointer dereference on AR9331 PHY
Published Feb 26, 2025
5.5
MEDIUMCVSS 3.1
EPSS 0.24%
Description
Latest kernel will explode on the PHY interrupt config, since it depends now on allocated priv. So, run probe to allocate priv to fix it.
ar9331_switch ethernet.1:10 lan0 (uninitialized): PHY [!ahb!ethernet@1a000000!mdio!switch@10:00] driver [Qualcomm Atheros AR9331 built-in PHY] (irq=13) CPU 0 Unable to handle kernel paging request at virtual address 0000000a, epc == 8050e8a8, ra == 80504b34 ... Call Trace: [<8050e8a8>] at803x_config_intr+0x5c/0xd0 [<80504b34>] phy_request_interrupt+0xa8/0xd0 [<8050289c>] phylink_bringup_phy+0x2d8/0x3ac [<80502b68>] phylink_fwnode_phy_connect+0x118/0x130 [<8074d8ec>] dsa_slave_create+0x270/0x420 [<80743b04>] dsa_port_setup+0x12c/0x148 [<8074580c>] dsa_register_switch+0xaf0/0xcc0 [<80511344>] ar9331_sw_probe+0x370/0x388 [<8050cb78>] mdio_probe+0x44/0x70 [<804df300>] really_probe+0x200/0x424 [<804df7b4>] __driver_probe_device+0x290/0x298 [<804df810>] driver_probe_device+0x54/0xe4 [<804dfd50>] __device_attach_driver+0xe4/0x130 [<804dcb00>] bus_for_each_drv+0xb4/0xd8 [<804dfac4>] __device_attach+0x104/0x1a4 [<804ddd24>] bus_probe_device+0x48/0xc4 [<804deb44>] deferred_probe_work_func+0xf0/0x10c [<800a0ffc>] process_one_work+0x314/0x4d4 [<800a17fc>] worker_thread+0x2a4/0x354 [<800a9a54>] kthread+0x134/0x13c [<8006306c>] ret_from_kernel_thread+0x14/0x1c
Same Issue would affect some other PHYs (QCA8081, QCA9561), so fix it too.
Affected products
-
Affected
- ≥ , <
- ≥ , <
-
Affected
- 5.18
Unaffected
- ≥ 0, < 5.18
- ≥ 5.18.8, ≤ 5.18.*
- 5.19
- ≥ 5.18 · < 5.18.8
- 5.19
- 5.19
- 5.19
No data.
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Out of support scope
Red Hat Enterprise Linux 7
kernel-rt
Out of support scope
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Out of support scope | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (8)
- https://access.redhat.com/security/cve/CVE-2022-49692 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2347773 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-54543 Advisory
- https://git.kernel.org/stable/c/66fa352215e8455ba2e5f33793535795bd3e36ca Patch
- https://git.kernel.org/stable/c/9926de7315be3d606cc011a305ad9adb9e8e14c9 Patch
- https://lore.kernel.org/linux-cve-announce/2025022627-CVE-2022-49692-0f29@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2022-49692
- https://www.cve.org/CVERecord?id=CVE-2022-49692
Change history (0)
No recorded changes yet.
CVE.org / MITRE
CISA Vulnrichment
GitHub
No data