CVE-2022-48939
bpf: Add schedule points in batch ops
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved: bpf: Add schedule points in batch ops syzbot reported various soft lockups caused by bpf batch operations. INFO: task kworker/1:1:27 blocked for more than 140 seconds. INFO: task hung in rcu_barrier Nothing prevents batch ops to process huge amount of data,
we need to add schedule points in them. Note that maybe_wait_bpf_programs(map) calls from
generic_map_delete_batch() can be factorized by moving
the call after the loop. This will be done later in -next tree once we get this fix merged,
unless there is strong opinion doing this optimization sooner.
In the Linux kernel, the following vulnerability has been resolved: bpf: Add schedule points in batch ops syzbot reported various soft lockups caused by bpf batch operations. INFO: task kworker/1:1:27 blocked for more than 140 seconds. INFO: task hung in rcu_barrier Nothing prevents batch ops to process huge amount of data, we need to add schedule points in them. Note that maybe_wait_bpf_programs(map) calls from generic_map_delete_batch() can be factorized by moving the call after the loop. This will be done later in -next tree once we get this fix merged, unless there is strong opinion doing this optimization sooner.
The SUSE Linux Enterprise 15 SP5 Azure kernel was updated to receive various security bug fixes.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-08-22 CVE Reserved
- 2024-08-22 CVE Published
- 2025-05-04 CVE Updated
- 2025-06-18 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-834: Excessive Iteration
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2022-48939 | 2023-05-09 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2307195 | 2023-05-09 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.6 < 5.10.103 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.6 < 5.10.103" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.6 < 5.15.26 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.6 < 5.15.26" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.6 < 5.16.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.6 < 5.16.12" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.6 < 5.17 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.6 < 5.17" | en |
Affected
| ||||||