wifi: wilc1000: prevent use-after-free on vif when cleaning up all interfaces
In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: prevent use-after-free on vif when cleaning up all interfaces wilc_netdev_cleanup currently triggers a KASAN warning, which can be observed on interface registration error path, or simply by removing the module/unbinding device from driver: echo spi0.1 > /sys/bus/spi/drivers/wilc1000_spi/unbind ================================================================== BUG: KASAN: slab-use-after-free in wilc_netdev_cleanup+0x508/0x5cc Read of size 4 at addr c54d1ce8 by task sh/86 CPU: 0 PID: 86 Comm: sh Not tainted 6.8.0-rc1+ #117 Hardware name: Atmel SAMA5 unwind_backtrace from show_stack+0x18/0x1c show_stack from dump_stack_lvl+0x34/0x58 dump_stack_lvl from print_report+0x154/0x500 print_report from kasan_report+0xac/0xd8 kasan_report from wilc_netdev_cleanup+0x508/0x5cc wilc_netdev_cleanup from wilc_bus_remove+0xc8/0xec wilc_bus_remove from spi_remove+0x8c/0xac spi_remove from device_release_driver_internal+0x434/0x5f8 device_release_driver_internal from unbind_store+0xbc/0x108 unbind_store from kernfs_fop_write_iter+0x398/0x584 kernfs_fop_write_iter from vfs_write+0x728/0xf88 vfs_write from ksys_write+0x110/0x1e4 ksys_write from ret_fast_syscall+0x0/0x1c [...] Allocated by task 1: kasan_save_track+0x30/0x5c __kasan_kmalloc+0x8c/0x94 __kmalloc_node+0x1cc/0x3e4 kvmalloc_node+0x48/0x180 alloc_netdev_mqs+0x68/0x11dc alloc_etherdev_mqs+0x28/0x34 wilc_netdev_ifc_init+0x34/0x8ec wilc_cfg80211_init+0x690/0
CVE-2024-26895
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2024-26895
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "8399918f3056e1033f0f4c08eab437fb38d6f22d",
"lessThan": "5956f4203b6cdd0755bbdd21b45f3933c7026208",
"versionType": "git"
},
{
"status": "affected",
"version": "8399918f3056e1033f0f4c08eab437fb38d6f22d",
"lessThan": "fe20e3d56bc911408fc3c27a17c59e9d7885f7d1",
"versionType": "git"
},
{
"status": "affected",
"version": "8399918f3056e1033f0f4c08eab437fb38d6f22d",
"lessThan": "a9545af2a533739ffb64d6c9a6fec6f13e2b505f",
"versionType": "git"
},
{
"status": "affected",
"version": "8399918f3056e1033f0f4c08eab437fb38d6f22d",
"lessThan": "3da9d32b7f4a1a9f7e4bb15bb82f2b2dd6719447",
"versionType": "git"
},
{
"status": "affected",
"version": "8399918f3056e1033f0f4c08eab437fb38d6f22d",
"lessThan": "24228dcf1d30c2231caa332be7d3090ac59fbfe9",
"versionType": "git"
},
{
"status": "affected",
"version": "8399918f3056e1033f0f4c08eab437fb38d6f22d",
"lessThan": "73a2aa0aef86c2c07be5a2f42c9e6047e1a2f7bb",
"versionType": "git"
},
{
"status": "affected",
"version": "8399918f3056e1033f0f4c08eab437fb38d6f22d",
"lessThan": "cb5942b77c05d54310a0420cac12935e9b6aa21c",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/wireless/microchip/wilc1000/netdev.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.214",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.153",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.83",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.23",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.7.11",
"versionType": "semver",
"lessThanOrEqual": "6.7.*"
},
{
"status": "unaffected",
"version": "6.8.2",
"versionType": "semver",
"lessThanOrEqual": "6.8.*"
},
{
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/microchip/wilc1000/netdev.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-26895
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #26451 · Revision 1
- Added to Heist Feed
- Publisher date