CVE-2025-38723
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
LoongArch: BPF: Fix jump offset calculation in tailcall
In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Fix jump offset calculation in tailcall The extra pass of bpf_int_jit_compile() skips JIT context initialization which essentially skips offset calculation leaving out_offset = -1, so the jmp_offset in emit_bpf_tail_call is calculated by "#define jmp_offset (out_offset - (cur_offset))" is a negative number, which is wrong. The final generated assembly are as follow. 54: bgeu $a2, $t1, -8 # 0x0000004c 58: addi.d $a6, $s5, -1 5c: bltz $a6, -16 # 0x0000004c 60: alsl.d $t2, $a2, $a1, 0x3 64: ld.d $t2, $t2, 264 68: beq $t2, $zero, -28 # 0x0000004c Before apply this patch, the follow test case will reveal soft lock issues. cd tools/testing/selftests/bpf/ ./test_progs --allow=tailcalls/tailcall_bpf2bpf_1 dmesg: watchdog: BUG: soft lockup - CPU#2 stuck for 26s! [test_progs:25056]
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5dc615520c4dfb358245680f1904bad61116648e | affected | git | 1a782fa32e644aa9fbae6c8488f3e61221ac96e1 | Unavailable | None listed |
| 5dc615520c4dfb358245680f1904bad61116648e | affected | git | 17c010fe45def335fe03a0718935416b04c7f349 | Unavailable | None listed |
| 5dc615520c4dfb358245680f1904bad61116648e | affected | git | f83d469e16bb1f75991ca67c56786fb2aaa42bea | Unavailable | None listed |
| 5dc615520c4dfb358245680f1904bad61116648e | affected | git | f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f | Unavailable | None listed |
| 5dc615520c4dfb358245680f1904bad61116648e | affected | git | 9262e3e04621558e875eb5afb5e726b648cd5949 | Unavailable | None listed |
| 5dc615520c4dfb358245680f1904bad61116648e | affected | git | cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.1 | Unavailable | None listed |
| 6.1.149 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.103 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.43 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.15.11 | unaffected | semver | Unavailable | 6.15.* | None listed |
| 6.16.2 | unaffected | semver | Unavailable | 6.16.* | None listed |
| 6.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |