Answer in brief
CVE-2022-50697 records a High severity (CVSS 7.8) vulnerability in mrp: introduce active flags to prevent UAF when applicant uninit. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2022-50697 records a High severity (CVSS 7.8) vulnerability in mrp: introduce active flags to prevent UAF when applicant uninit. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=febf018d22347b5df94066bca05d0c11a84e839d <98f53e591940e4c3818be358c5dc684d5b30cb56 || >=febf018d22347b5df94066bca05d0c11a84e839d <aacffc1a8dbf67c5463cb4f67b37143c01ca6fa9 || >=febf018d22347b5df94066bca05d0c11a84e839d <78d48bc41f7726113c9f114268d3ab11212814da || >=febf018d22347b5df94066bca05d0c11a84e839d <aadb1507a77b060c529edfeaf67f803e31461f24 || >=febf018d22347b5df94066bca05d0c11a84e839d <755eb0879224ffc2a43de724554aeaf0e51e5a64 || >=febf018d22347b5df94066bca05d0c11a84e839d <5d5a481a7fd0234f617535dc464ea010804a1129 || >=febf018d22347b5df94066bca05d0c11a84e839d <1a185fe83c2a60c1e3596fb9d82dbeb148dc09c6 || >=febf018d22347b5df94066bca05d0c11a84e839d <563e45fd5046045cc194af3ba17f5423e1c98170 || >=febf018d22347b5df94066bca05d0c11a84e839d <ab0377803dafc58f1e22296708c1c28e309414d6 | 98f53e591940e4c3818be358c5dc684d5b30cb56, aacffc1a8dbf67c5463cb4f67b37143c01ca6fa9, 78d48bc41f7726113c9f114268d3ab11212814da, aadb1507a77b060c529edfeaf67f803e31461f24, 755eb0879224ffc2a43de724554aeaf0e51e5a64, 5d5a481a7fd0234f617535dc464ea010804a1129, 1a185fe83c2a60c1e3596fb9d82dbeb148dc09c6, 563e45fd5046045cc194af3ba17f5423e1c98170, ab0377803dafc58f1e22296708c1c28e309414d6 |
| Linux/Linuxgeneric | 3.9 | Not reported |
Published upstream
Dec 24, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: mrp: introduce active flags to prevent UAF when applicant uninit The caller of del_timer_sync must prevent restarting of the timer, If we have no this synchronization, there is a small probability that the cancellation will not be successful. And syzbot report the fellowing crash: ================================================================== BUG: KASAN: use-after-free in hlist_add_head include/linux/list.h:929 [inline] BUG: KASAN: use-after-free in enqueue_timer+0x18/0xa4 kernel/time/timer.c:605 Write at addr f9ff000024df6058 by task syz-fuzzer/2256 Pointer tag: [f9], memory tag: [fe] CPU: 1 PID: 2256 Comm: syz-fuzzer Not tainted 6.1.0-rc5-syzkaller-00008- ge01d50cbd6ee #0 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace.part.0+0xe0/0xf0 arch/arm64/kernel/stacktrace.c:156 dump_backtrace arch/arm64/kernel/stacktrace.c:162 [inline] show_stack+0x18/0x40 arch/arm64/kernel/stacktrace.c:163 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x68/0x84 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x1a8/0x4a0 mm/kasan/report.c:395 kasan_report+0x94/0xb4 mm/kasan/report.c:495 __do_kernel_fault+0x164/0x1e0 arch/arm64/mm/fault.c:320 do_bad_area arch/arm64/mm/fault.c:473 [inline] do_tag_check_fault+0x78/0x8c arch/arm64/mm/fault.c:749 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:825 el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:367 el1h_64_sync_handler+0xd8/0xe4 arch/arm64/kernel/entry-common.c:427 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:576 hlist_add_head include/linux/list.h:929 [inline] enqueue_timer+0x18/0xa4 kernel/time/timer.c:605 mod_timer+0x14/0x20 kernel/time/timer.c:1161 mrp_periodic_timer_arm net/802/mrp.c:614 [inline] mrp_periodic_timer+0xa0/0xc0 net/802/mrp.c:627 call_timer_fn.constprop.0+0x24/0x80 kernel/time/timer.c:1474 expire_timers+0x98/0xc4 kernel/time/timer.c:1519 To fix it, we can introduce a new active flags to make sure the timer will not restart.
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=febf018d22347b5df94066bca05d0c11a84e839d <98f53e591940e4c3818be358c5dc684d5b30cb56 || >=febf018d22347b5df94066bca05d0c11a84e839d <aacffc1a8dbf67c5463cb4f67b37143c01ca6fa9 || >=febf018d22347b5df94066bca05d0c11a84e839d <78d48bc41f7726113c9f114268d3ab11212814da || >=febf018d22347b5df94066bca05d0c11a84e839d <aadb1507a77b060c529edfeaf67f803e31461f24 || >=febf018d22347b5df94066bca05d0c11a84e839d <755eb0879224ffc2a43de724554aeaf0e51e5a64 || >=febf018d22347b5df94066bca05d0c11a84e839d <5d5a481a7fd0234f617535dc464ea010804a1129 || >=febf018d22347b5df94066bca05d0c11a84e839d <1a185fe83c2a60c1e3596fb9d82dbeb148dc09c6 || >=febf018d22347b5df94066bca05d0c11a84e839d <563e45fd5046045cc194af3ba17f5423e1c98170 || >=febf018d22347b5df94066bca05d0c11a84e839d <ab0377803dafc58f1e22296708c1c28e309414d6 | 98f53e591940e4c3818be358c5dc684d5b30cb56, aacffc1a8dbf67c5463cb4f67b37143c01ca6fa9, 78d48bc41f7726113c9f114268d3ab11212814da, aadb1507a77b060c529edfeaf67f803e31461f24, 755eb0879224ffc2a43de724554aeaf0e51e5a64, 5d5a481a7fd0234f617535dc464ea010804a1129, 1a185fe83c2a60c1e3596fb9d82dbeb148dc09c6, 563e45fd5046045cc194af3ba17f5423e1c98170, ab0377803dafc58f1e22296708c1c28e309414d6 |
| Linux/Linuxgeneric | 3.9 | Not reported |
Published upstream
Dec 24, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: mrp: introduce active flags to prevent UAF when applicant uninit The caller of del_timer_sync must prevent restarting of the timer, If we have no this synchronization, there is a small probability that the cancellation will not be successful. And syzbot report the fellowing crash: ================================================================== BUG: KASAN: use-after-free in hlist_add_head include/linux/list.h:929 [inline] BUG: KASAN: use-after-free in enqueue_timer+0x18/0xa4 kernel/time/timer.c:605 Write at addr f9ff000024df6058 by task syz-fuzzer/2256 Pointer tag: [f9], memory tag: [fe] CPU: 1 PID: 2256 Comm: syz-fuzzer Not tainted 6.1.0-rc5-syzkaller-00008- ge01d50cbd6ee #0 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace.part.0+0xe0/0xf0 arch/arm64/kernel/stacktrace.c:156 dump_backtrace arch/arm64/kernel/stacktrace.c:162 [inline] show_stack+0x18/0x40 arch/arm64/kernel/stacktrace.c:163 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x68/0x84 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x1a8/0x4a0 mm/kasan/report.c:395 kasan_report+0x94/0xb4 mm/kasan/report.c:495 __do_kernel_fault+0x164/0x1e0 arch/arm64/mm/fault.c:320 do_bad_area arch/arm64/mm/fault.c:473 [inline] do_tag_check_fault+0x78/0x8c arch/arm64/mm/fault.c:749 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:825 el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:367 el1h_64_sync_handler+0xd8/0xe4 arch/arm64/kernel/entry-common.c:427 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:576 hlist_add_head include/linux/list.h:929 [inline] enqueue_timer+0x18/0xa4 kernel/time/timer.c:605 mod_timer+0x14/0x20 kernel/time/timer.c:1161 mrp_periodic_timer_arm net/802/mrp.c:614 [inline] mrp_periodic_timer+0xa0/0xc0 net/802/mrp.c:627 call_timer_fn.constprop.0+0x24/0x80 kernel/time/timer.c:1474 expire_timers+0x98/0xc4 kernel/time/timer.c:1519 To fix it, we can introduce a new active flags to make sure the timer will not restart.
Quoted source text, attributed separately from HOL analysis.