In the Linux kernel, the following vulnerability has been resolved:
usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable()
…
cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request);
list_del_init(&priv_req->list);
…
‘priv_req’ actually free at cdns3_gadget_ep_free_request(). But
list_del_init() use priv_req->list after it.
[ 1542.642868][ T534] BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xd4
[ 1542.642868][ T534]
[ 1542.653162][ T534] Use-after-free read at 0x000000009ed0ba99 (in kfence-#3):
[ 1542.660311][ T534] __list_del_entry_valid+0x10/0xd4
[ 1542.665375][ T534] cdns3_gadget_ep_disable+0x1f8/0x388 [cdns3]
[ 1542.671571][ T534] usb_ep_disable+0x44/0xe4
[ 1542.675948][ T534] ffs_func_eps_disable+0x64/0xc8
[ 1542.680839][ T534] ffs_func_set_alt+0x74/0x368
[ 1542.685478][ T534] ffs_func_disable+0x18/0x28
Move list_del_init() before cdns3_gadget_ep_free_request() to resolve this
problem.
Vendor | Product | Version | CPE |
---|---|---|---|
linux | linux_kernel | * | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/usb/cdns3/cdns3-gadget.c"
],
"versions": [
{
"version": "7733f6c32e36",
"lessThan": "cfa9abb5570c",
"status": "affected",
"versionType": "git"
},
{
"version": "7733f6c32e36",
"lessThan": "b40328eea93c",
"status": "affected",
"versionType": "git"
},
{
"version": "7733f6c32e36",
"lessThan": "4e5c73b15d95",
"status": "affected",
"versionType": "git"
},
{
"version": "7733f6c32e36",
"lessThan": "2134e9906e17",
"status": "affected",
"versionType": "git"
},
{
"version": "7733f6c32e36",
"lessThan": "29e42e1578a1",
"status": "affected",
"versionType": "git"
},
{
"version": "7733f6c32e36",
"lessThan": "9a07244f614b",
"status": "affected",
"versionType": "git"
},
{
"version": "7733f6c32e36",
"lessThan": "cd45f99034b0",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/usb/cdns3/cdns3-gadget.c"
],
"versions": [
{
"version": "5.4",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.4",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.4.270",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.211",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.150",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.1.80",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.6.19",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.7.7",
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.8",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/2134e9906e17b1e5284300fab547869ebacfd7d9
git.kernel.org/stable/c/29e42e1578a10c611b3f1a38f3229b2d664b5d16
git.kernel.org/stable/c/4e5c73b15d95452c1ba9c771dd013a3fbe052ff3
git.kernel.org/stable/c/9a07244f614bc417de527b799da779dcae780b5d
git.kernel.org/stable/c/b40328eea93c75a5645891408010141a0159f643
git.kernel.org/stable/c/cd45f99034b0c8c9cb346dd0d6407a95ca3d36f6
git.kernel.org/stable/c/cfa9abb5570c489dabf6f7fb3a066cc576fc8824
lists.debian.org/debian-lts-announce/2024/06/msg00017.html