CVE-2022-48939 bpf: Add schedule points in batch ops

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 rcubarrier Nothing prevents batch ops to...

CVE-2024-42281

A denial of service vulnerability was found in the Linux kernel. Downgrading gsosize may trigger a crash, resulting in a loss of system availability. Mitigation Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria...

CVE-2024-43838 bpf: fix overflow check in adjust_jmp_off()

In the Linux kernel, the following vulnerability has been resolved: bpf: fix overflow check in adjustjmpoff adjustjmpoff incorrectly used the insn-imm field for all overflow check, which is incorrect as that should only be done or the BPFJMP32 | BPFJA case, not the general jump instruction case...

CVE-2024-42161

A vulnerability was found in the Linux kernel in the bpfenumvaluekind function, where a lack of proper checks could lead to an uninitialized variable being used. This issue could lead to undefined behavior or memory corruption. Mitigation Mitigation for this issue is either not available or the...

CVE-2024-42151

In the Linux kernel, the following vulnerability has been resolved: bpf: mark bpfdummystructops.test1 parameter as nullable Test case dummystops/dummyinitretvalue passes NULL as the first parameter of the test1 function. Mark this parameter as nullable to make verifier aware of such possibility...

CVE-2024-42063

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark bpf prog stack with kmsanunposionmemory in interpreter mode syzbot reported uninit memory usages during maplookup,deleteelem. ========== BUG: KMSAN: uninit-value in devmaplookupelem kernel/bpf/devmap.c:441 inline BUG:...

CVE-2024-42161

Technical details about CVE-2024-42161 are not publicly provided in the connected documents. The description mentions a Linux kernel BPF_CORE_READ_BITFIELD uninitialized value fix and a patch to initialize val, but there are no explicit affected products/versions or remediation steps beyond the p...

CVE-2024-42063 bpf: Mark bpf prog stack with kmsan_unposion_memory in interpreter mode

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark bpf prog stack with kmsanunposionmemory in interpreter mode syzbot reported uninit memory usages during maplookup,deleteelem. ========== BUG: KMSAN: uninit-value in devmaplookupelem kernel/bpf/devmap.c:441 inline BUG:...

CVE-2024-41045 bpf: Defer work in bpf_timer_cancel_and_free

In the Linux kernel, the following vulnerability has been resolved: bpf: Defer work in bpftimercancelandfree Currently, the same case as previous patch two timer callbacks trying to cancel each other can be invoked through bpfmapupdateelem as well, or more precisely, freeing map elements containi...

PT-2024-33898

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.6.58 Description: The issue concerns the Linux kernel, where a vulnerability has been resolved related to the bpf Berkeley Packet Filter functionality. Specifically, the problem arises when bpf programs attach...

CVE-2024-40909

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a potential use-after-free in bpflinkfree After commit 1a80dbcb2dba, bpflink can be freed by link-ops-deallocdeferred, but the code still tests and uses link-ops-dealloc afterward, which leads to a use-after-free as...

CVE-2024-40908

In the Linux kernel, the following vulnerability has been resolved: bpf: Set run context for rawtp testrun callback syzbot reported crash when rawtp program executed through the testrun interface calls bpfgetattachcookie helper or any other helper that touches task-bpfctx pointer. Setting the run...

CVE-2024-40996

In the Linux kernel, the following vulnerability has been resolved: bpf: Avoid splat in pskbpullreason syzkaller builds CONFIGDEBUGNET=y frequently trigger a debug hint in pskbmaypull. We'd like to retain this debug check because it might hint at integer overflows and other issues kernel code...

UBUNTU-CVE-2024-41003

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix regsetminmax corruption of fakereg Juan reported that after doing some changes to buzzer 0 and implementing a new fuzzing strategy guided by coverage, they noticed the following in one of the probes: ... 13: 79 r6 = u64 ...

CVE-2024-40996

In the Linux kernel, the following vulnerability has been resolved: bpf: Avoid splat in pskbpullreason syzkaller builds CONFIGDEBUGNET=y frequently trigger a debug hint in pskbmaypull. We'd like to retain this debug check because it might hint at integer overflows and other issues kernel code...

CVE-2024-41003 bpf: Fix reg_set_min_max corruption of fake_reg

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix regsetminmax corruption of fakereg Juan reported that after doing some changes to buzzer 0 and implementing a new fuzzing strategy guided by coverage, they noticed the following in one of the probes: ... 13: 79 r6 = u64 ...

CVE-2024-40908

The CVE-2024-40908 issue affects the Linux kernel in the bpf component, specifically the rawtp test_run callback. The root cause is that the run context (task->bpf_ctx) was not properly set for the test_run callback, which SYZBOT reported could crash when a rawtp program called bpf_get_attach_...

CVE-2021-47607

CVE-2021-47607 is a Linux kernel issue where BPF_CMPXCHG could leak kernel addresses due to the verifier not rejecting unprivileged programs that place a pointer in R0. The high-level POC probes kernel addresses by using the map value pointer as R0 while SRC_REG has a canary, enabling address lea...

CVE-2024-38564

In the Linux kernel, the following vulnerability has been resolved: bpf: Add BPFPROGTYPECGROUPSKB attach type enforcement in BPFLINKCREATE bpfprogattach uses attachtypetoprogtype to enforce proper attach type for BPFPROGTYPECGROUPSKB. linkcreate uses bpfprogget and relies on...

CVE-2021-47376

In the Linux kernel, the following vulnerability has been resolved: bpf: Add oversize check before call kvcalloc Commit 7661809d493b "mm: don't allow oversized kvmalloc calls" add the oversize check. When the allocation is larger than what kmalloc supports, the following warning triggered: WARNIN...