In the Linux kernel, the following vulnerability has been resolved:
pipe: wakeup wr_wait after setting max_usage
Commit c73be61cede5 (“pipe: Add general notification queue support”) a
regression was introduced that would lock up resized pipes under certain
conditions. See the reproducer in [1].
The commit resizing the pipe ring size was moved to a different
function, doing that moved the wakeup for pipe->wr_wait before actually
raising pipe->max_usage. If a pipe was full before the resize occured it
would result in the wakeup never actually triggering pipe_write.
Set @max_usage and @nr_accounted before waking writers if this isn’t a
watch queue.
[Christian Brauner <[email protected]>: rewrite to account for watch queues]
[
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "c73be61cede5",
"lessThan": "162ae0e78bda",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "c73be61cede5",
"lessThan": "3efbd114b915",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "c73be61cede5",
"lessThan": "b87a1229d866",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "c73be61cede5",
"lessThan": "68e51bdb1194",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "c73be61cede5",
"lessThan": "6fb70694f8d1",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "c73be61cede5",
"lessThan": "e95aada4cb93",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "affected",
"version": "5.8"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "0",
"lessThan": "5.8",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "5.10.210",
"versionType": "custom",
"lessThanOrEqual": "5.11"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "5.15.149",
"versionType": "custom",
"lessThanOrEqual": "5.16"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "6.1.76",
"versionType": "custom",
"lessThanOrEqual": "6.2"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "6.6.15",
"versionType": "custom",
"lessThanOrEqual": "6.7"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "6.7.3",
"versionType": "custom",
"lessThanOrEqual": "6.8"
}
],
"defaultStatus": "unknown"
},
{
"cpes": [
"cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*"
],
"vendor": "linux",
"product": "linux_kernel",
"versions": [
{
"status": "unaffected",
"version": "6.8"
}
],
"defaultStatus": "unknown"
}
]
git.kernel.org/stable/c/162ae0e78bdabf84ef10c1293c4ed7865cb7d3c8
git.kernel.org/stable/c/3efbd114b91525bb095b8ae046382197d92126b9
git.kernel.org/stable/c/68e51bdb1194f11d3452525b99c98aff6f837b24
git.kernel.org/stable/c/6fb70694f8d1ac34e45246b0ac988f025e1e5b55
git.kernel.org/stable/c/b87a1229d8668fbc78ebd9ca0fc797a76001c60f
git.kernel.org/stable/c/e95aada4cb93d42e25c30a0ef9eb2923d9711d4a
lists.debian.org/debian-lts-announce/2024/06/msg00017.html