CVE-2022-49065
published 2025-02-26CVE-2022-49065: In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix the svc_deferred_event trace class Fix a NULL deref crash that occurs when an…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.62%
46.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
SUNRPC: Fix the svc_deferred_event trace class
Fix a NULL deref crash that occurs when an svc_rqst is deferred
while the sunrpc tracing subsystem is enabled. svc_revisit() sets
dr->xprt to NULL, so it can't be relied upon in the tracepoint to
provide the remote's address.
Unfortunately we can't revert the "svc_deferred_class" hunk in
commit ece200ddd54b ("sunrpc: Save remote presentation address in
svc_xprt for trace events") because there is now a specific check
of event format specifiers for unsafe dereferences. The warning
that check emits is:
event svc_defer_recv has unsafe dereference of argument 1
A "%pISpc" format specifier with a "struct sockaddr *" is indeed
flagged by this check.
Instead, take the brute-force approach used by the svcrdma_qp_error
tracepoint. Convert the dr::addr field into a presentation address
in the TP_fast_assign() arm of the trace event, and store that as
a string. This fix can be backported to -stable kernels.
In the meantime, commit c6ced22997ad ("tracing: Update print fmt
check to handle new __get_sockaddr() macro") is now in v5.18, so
this wonky fix can be replaced with __sockaddr() and friends
properly during the v5.19 merge window.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.17.6-1 (bookworm) | linux 5.17.6-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= ece200ddd54b9ce840cfee554fb812560c545c7d < 85ee17ca21cf92989e8c923e3ea4514c291e9d38 | 85ee17ca21cf92989e8c923e3ea4514c291e9d38 |
| linux | linux | >= ece200ddd54b9ce840cfee554fb812560c545c7d < 726ae7300fcc25fefa46d188cc07eb16dc908f9e | 726ae7300fcc25fefa46d188cc07eb16dc908f9e |
| linux | linux | >= ece200ddd54b9ce840cfee554fb812560c545c7d < c2456f470eea3bd06574d988bf6089e7c3f4c5cc | c2456f470eea3bd06574d988bf6089e7c3f4c5cc |
| linux | linux | >= ece200ddd54b9ce840cfee554fb812560c545c7d < 4d5004451ab2218eab94a30e1841462c9316ba19 | 4d5004451ab2218eab94a30e1841462c9316ba19 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.113-1 | 5.10.113-1 |
| linux | linux_kernel | >= 0 < 5.17.6-1 | 5.17.6-1 |
| linux | linux_kernel | >= 0 < 5.17.6-1 | 5.17.6-1 |
| linux | linux_kernel | >= 0 < 5.17.6-1 | 5.17.6-1 |
| linux | linux_kernel | >= 4.17 < 5.10.112 | 5.10.112 |
| linux | linux_kernel | >= 5.11 < 5.15.35 | 5.15.35 |
| linux | linux_kernel | >= 5.16 < 5.17.4 | 5.17.4 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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Red Hat
kernel: SUNRPC: Fix the svc_deferred_event trace class
vendor_redhat·2025-02-26·CVSS 5.5
CVE-2022-49065 [MEDIUM] CWE-476 kernel: SUNRPC: Fix the svc_deferred_event trace class
kernel: SUNRPC: Fix the svc_deferred_event trace class
In the Linux kernel, the following vulnerability has been resolved:
SUNRPC: Fix the svc_deferred_event trace class
Fix a NULL deref crash that occurs when an svc_rqst is deferred
while the sunrpc tracing subsystem is enabled. svc_revisit() sets
dr->xprt to NULL, so it can't be relied upon in the tracepoint to
provide the remote's address.
Unfortunately we can't revert the "svc_deferred_class" hunk in
commit ece200ddd54b ("sunrpc: Save remote presentation address in
svc_xprt for trace events") because there is now a specific check
of event format specifiers for unsafe dereferences. The warning
that check emits is:
event svc_defer_recv has unsafe dereference of argument 1
A "%pISpc" format specifier with a "struct sockaddr *" is indeed
Debian
CVE-2022-49065: linux - In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix...
vendor_debian·2022·CVSS 5.5
CVE-2022-49065 [MEDIUM] CVE-2022-49065: linux - In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix...
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix the svc_deferred_event trace class Fix a NULL deref crash that occurs when an svc_rqst is deferred while the sunrpc tracing subsystem is enabled. svc_revisit() sets dr->xprt to NULL, so it can't be relied upon in the tracepoint to provide the remote's address. Unfortunately we can't revert the "svc_deferred_class" hunk in commit ece200ddd54b ("sunrpc: Save remote presentation address in svc_xprt for trace events") because there is now a specific check of event format specifiers for unsafe dereferences. The warning that check emits is: event svc_defer_recv has unsafe dereference of argument 1 A "%pISpc" format specifier with a "struct sockaddr *" is indeed flagged by this check. Instead, take the brute-force app
GHSA
GHSA-v2m4-f87m-9vv4: In the Linux kernel, the following vulnerability has been resolved:
SUNRPC: Fix the svc_deferred_event trace class
Fix a NULL deref crash that occur
ghsa_unreviewed·2025-03-18
CVE-2022-49065 [MEDIUM] CWE-476 GHSA-v2m4-f87m-9vv4: In the Linux kernel, the following vulnerability has been resolved:
SUNRPC: Fix the svc_deferred_event trace class
Fix a NULL deref crash that occur
In the Linux kernel, the following vulnerability has been resolved:
SUNRPC: Fix the svc_deferred_event trace class
Fix a NULL deref crash that occurs when an svc_rqst is deferred
while the sunrpc tracing subsystem is enabled. svc_revisit() sets
dr->xprt to NULL, so it can't be relied upon in the tracepoint to
provide the remote's address.
Unfortunately we can't revert the "svc_deferred_class" hunk in
commit ece200ddd54b ("sunrpc: Save remote presentation address in
svc_xprt for trace events") because there is now a specific check
of event format specifiers for unsafe dereferences. The warning
that check emits is:
event svc_defer_recv has unsafe dereference of argument 1
A "%pISpc" format specifier with a "struct sockaddr *" is indeed
flagged by this check.
Instead, take the brute-for
OSV
CVE-2022-49065: In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix the svc_deferred_event trace class Fix a NULL deref crash that occurs
osv·2025-02-26·CVSS 5.5
CVE-2022-49065 [MEDIUM] CVE-2022-49065: In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix the svc_deferred_event trace class Fix a NULL deref crash that occurs
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix the svc_deferred_event trace class Fix a NULL deref crash that occurs when an svc_rqst is deferred while the sunrpc tracing subsystem is enabled. svc_revisit() sets dr->xprt to NULL, so it can't be relied upon in the tracepoint to provide the remote's address. Unfortunately we can't revert the "svc_deferred_class" hunk in commit ece200ddd54b ("sunrpc: Save remote presentation address in svc_xprt for trace events") because there is now a specific check of event format specifiers for unsafe dereferences. The warning that check emits is: event svc_defer_recv has unsafe dereference of argument 1 A "%pISpc" format specifier with a "struct sockaddr *" is indeed flagged by this check. Instead, take the brute-force app
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-02-26
Published