ghsa-f95q-j6q7-73v7
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
wifi: wilc1000: unregister wiphy only if it has been registered
There is a specific error path in probe functions in wilc drivers (both sdio and spi) which can lead to kernel panic, as this one for example when using SPI:
Unable to handle kernel paging request at virtual address 9f000000 when read [9f000000] *pgd=00000000 Internal error: Oops: 5 [#1] ARM Modules linked in: wilc1000_spi(+) crc_itu_t crc7 wilc1000 cfg80211 bluetooth ecdh_generic ecc CPU: 0 UID: 0 PID: 106 Comm: modprobe Not tainted 6.13.0-rc3+ #22 Hardware name: Atmel SAMA5 PC is at wiphy_unregister+0x244/0xc40 [cfg80211] LR is at wiphy_unregister+0x1c0/0xc40 [cfg80211] [...] wiphy_unregister [cfg80211] from wilc_netdev_cleanup+0x380/0x494 [wilc1000] wilc_netdev_cleanup [wilc1000] from wilc_bus_probe+0x360/0x834 [wilc1000_spi] wilc_bus_probe [wilc1000_spi] from spi_probe+0x15c/0x1d4 spi_probe from really_probe+0x270/0xb2c really_probe from __driver_probe_device+0x1dc/0x4e8 __driver_probe_device from driver_probe_device+0x5c/0x140 driver_probe_device from __driver_attach+0x220/0x540 __driver_attach from bus_for_each_dev+0x13c/0x1a8 bus_for_each_dev from bus_add_driver+0x2a0/0x6a4 bus_add_driver from driver_register+0x27c/0x51c driver_register from do_one_initcall+0xf8/0x564 do_one_initcall from do_init_module+0x2e4/0x82c do_init_module from load_module+0x59a0/0x70c4 load_module from init_module_from_file+0x100/0x148 init_module_from_file from sys_finit_module+0x2fc/0x924 sys_finit_module from ret_fast_syscall+0x0/0x1c
The issue can easily be reproduced, for example by not wiring correctly a wilc device through SPI (and so, make it unresponsive to early SPI commands). It is due to a recent change decoupling wiphy allocation from wiphy registration, however wilc_netdev_cleanup has not been updated accordingly, letting it possibly call wiphy unregister on a wiphy which has never been registered.
Fix this crash by moving wiphy_unregister/wiphy_free out of wilc_netdev_cleanup, and by adjusting error paths in both drivers
{
"affected": [],
"aliases": [
"CVE-2024-57992"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-27T02:15:13Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wilc1000: unregister wiphy only if it has been registered\n\nThere is a specific error path in probe functions in wilc drivers (both\nsdio and spi) which can lead to kernel panic, as this one for example\nwhen using SPI:\n\nUnable to handle kernel paging request at virtual address 9f000000 when read\n[9f000000] *pgd=00000000\nInternal error: Oops: 5 [#1] ARM\nModules linked in: wilc1000_spi(+) crc_itu_t crc7 wilc1000 cfg80211 bluetooth ecdh_generic ecc\nCPU: 0 UID: 0 PID: 106 Comm: modprobe Not tainted 6.13.0-rc3+ #22\nHardware name: Atmel SAMA5\nPC is at wiphy_unregister+0x244/0xc40 [cfg80211]\nLR is at wiphy_unregister+0x1c0/0xc40 [cfg80211]\n[...]\n wiphy_unregister [cfg80211] from wilc_netdev_cleanup+0x380/0x494 [wilc1000]\n wilc_netdev_cleanup [wilc1000] from wilc_bus_probe+0x360/0x834 [wilc1000_spi]\n wilc_bus_probe [wilc1000_spi] from spi_probe+0x15c/0x1d4\n spi_probe from really_probe+0x270/0xb2c\n really_probe from __driver_probe_device+0x1dc/0x4e8\n __driver_probe_device from driver_probe_device+0x5c/0x140\n driver_probe_device from __driver_attach+0x220/0x540\n __driver_attach from bus_for_each_dev+0x13c/0x1a8\n bus_for_each_dev from bus_add_driver+0x2a0/0x6a4\n bus_add_driver from driver_register+0x27c/0x51c\n driver_register from do_one_initcall+0xf8/0x564\n do_one_initcall from do_init_module+0x2e4/0x82c\n do_init_module from load_module+0x59a0/0x70c4\n load_module from init_module_from_file+0x100/0x148\n init_module_from_file from sys_finit_module+0x2fc/0x924\n sys_finit_module from ret_fast_syscall+0x0/0x1c\n\nThe issue can easily be reproduced, for example by not wiring correctly\na wilc device through SPI (and so, make it unresponsive to early SPI\ncommands). It is due to a recent change decoupling wiphy allocation from\nwiphy registration, however wilc_netdev_cleanup has not been updated\naccordingly, letting it possibly call wiphy unregister on a wiphy which\nhas never been registered.\n\nFix this crash by moving wiphy_unregister/wiphy_free out of\nwilc_netdev_cleanup, and by adjusting error paths in both drivers",
"id": "GHSA-f95q-j6q7-73v7",
"modified": "2025-02-27T03:34:00Z",
"published": "2025-02-27T03:34:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57992"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1be94490b6b8a06ff14cd23fda8714e6ec37cdfb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c7115b8229f3e6cdfae43b1cdd180f5b6c67cd70"
}
],
"schema_version": "1.4.0",
"severity": []
}
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