In the Linux kernel, the following vulnerability has been resolved:
tls: fix race between async notify and socket close
The submitting thread (one which called recvmsg/sendmsg)
may exit as soon as the async crypto handler calls complete()
so any code past that point risks touching already freed data.
Try to avoid the locking and extra flags altogether.
Have the main thread hold an extra reference, this way
we can depend solely on the atomic ref counter for
synchronization.
Don’t futz with reiniting the completion, either, we are now
tightly controlling when completion fires.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "0cada33241d9",
"lessThan": "f17d21ea7391",
"versionType": "git"
},
{
"status": "affected",
"version": "0cada33241d9",
"lessThan": "7a3ca06d04d5",
"versionType": "git"
},
{
"status": "affected",
"version": "0cada33241d9",
"lessThan": "86dc27ee36f5",
"versionType": "git"
},
{
"status": "affected",
"version": "0cada33241d9",
"lessThan": "6209319b2efd",
"versionType": "git"
},
{
"status": "affected",
"version": "0cada33241d9",
"lessThan": "aec7961916f3",
"versionType": "git"
}
],
"programFiles": [
"include/net/tls.h",
"net/tls/tls_sw.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.7",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "5.15.160",
"versionType": "custom",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.79",
"versionType": "custom",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.18",
"versionType": "custom",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.7.6",
"versionType": "custom",
"lessThanOrEqual": "6.7.*"
},
{
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"include/net/tls.h",
"net/tls/tls_sw.c"
],
"defaultStatus": "affected"
}
]
git.kernel.org/stable/c/6209319b2efdd8524691187ee99c40637558fa33
git.kernel.org/stable/c/7a3ca06d04d589deec81f56229a9a9d62352ce01
git.kernel.org/stable/c/86dc27ee36f558fe223dbdfbfcb6856247356f4a
git.kernel.org/stable/c/aec7961916f3f9e88766e2688992da6980f11b8d
git.kernel.org/stable/c/f17d21ea73918ace8afb9c2d8e734dbf71c2c9d7