Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — SUNRPC: Fix null-ptr-deref when xps sysfs alloc failed
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0033 26.4 —
AFFECTED
Product Versions Fixed
Linux baea99445dd4675a834e8a5987d2f368adb62e6c – —
Linux 5.14 – 5.15.78
TIMELINE
May 1 Reserved by Linux
May 1 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2022-49928 (Linux). CVSS 7.5 → 5.5 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
SUNRPC: Fix null-ptr-deref when xps sysfs alloc failed
There is a null-ptr-deref when xps sysfs alloc failed:
BUG: KASAN: null-ptr-deref in sysfs_do_create_link_sd+0x40/0xd0
Read of size 8 at addr 0000000000000030 by task gssproxy/457
CPU: 5 PID: 457 Comm: gssproxy Not tainted 6.0.0-09040-g02357b27ee03 #9
Call Trace:
<TASK>
dump_stack_lvl+0x34/0x44
kasan_report+0xa3/0x120
sysfs_do_create_link_sd+0x40/0xd0
rpc_sysfs_client_setup+0x161/0x1b0
rpc_new_client+0x3fc/0x6e0
rpc_create_xprt+0x71/0x220
rpc_create+0x1d4/0x350
gssp_rpc_create+0xc3/0x160
set_gssp_clnt+0xbc/0x140
write_gssp+0x116/0x1a0
proc_reg_write+0xd6/0x130
vfs_write+0x177/0x690
ksys_write+0xb9/0x150
do_syscall_64+0x35/0x80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
When the xprt_switch sysfs alloc failed, should not add xprt and
switch sysfs to it, otherwise, maybe null-ptr-deref; also initialize
the 'xps_sysfs' to NULL to avoid oops when destroy it.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| May 1, 2025 | Reserved | Reserved by Linux |
| May 1, 2025 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2022-49928 (Linux). CVSS 7.5 → 5.5 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | baea99445dd4675a834e8a5987d2f368adb62e6c | — |
| Linux | Linux | — | 5.14 | 5.15.78 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-49928 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.