net/mlx5e: xsk: Fix invalid buffer access for legacy rq
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix invalid buffer access for legacy rq The below crash can be encountered when using xdpsock in rx mode for legacy rq: the buffer gets released in the XDP_REDIRECT path, and then once again in the driver. This fix sets the flag to avoid releasing on the driver side. XSK handling of buffers for legacy rq was relying on the caller to set the skip release flag. But the referenced fix started using fragment counts for pages instead of the skip flag. Crash log: general protection fault, probably for non-canonical address 0xffff8881217e3a: 0000 [#1] SMP CPU: 0 PID: 14 Comm: ksoftirqd/0 Not tainted 6.5.0-rc1+ #31 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:bpf_prog_03b13f331978c78c+0xf/0x28 Code: ... RSP: 0018:ffff88810082fc98 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888138404901 RCX: c0ffffc900027cbc RDX: ffffffffa000b514 RSI: 00ffff8881217e32 RDI: ffff888138404901 RBP: ffff88810082fc98 R08: 0000000000091100 R09: 0000000000000006 R10: 0000000000000800 R11: 0000000000000800 R12: ffffc9000027a000 R13: ffff8881217e2dc0 R14: ffff8881217e2910 R15: ffff8881217e2f00 FS: 0000000000000000(0000) GS:ffff88852c800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000564cb2e2cde0 CR3: 000000010e603004 CR4: 0000000000370eb0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR
CVE-2023-54223
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-2023-54223
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": "cbb5379362513cbff450df0457dc370da7244bec",
"lessThan": "58a113a35846d9a5bd759beb332e551e28451f09",
"versionType": "git"
},
{
"status": "affected",
"version": "7abd955a58fb0fcd4e756fa2065c03ae488fcfa7",
"lessThan": "e0f52298fee449fec37e3e3c32df60008b509b16",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/mellanox/mlx5/core/en/xsk/rx.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.4.5",
"lessThan": "6.4.10",
"versionType": "semver"
}
],
"programFiles": [
"drivers/net/ethernet/mellanox/mlx5/core/en/xsk/rx.c"
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2023-54223
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #30365 · Revision 1
- Added to Heist Feed
- Publisher date