In the Linux kernel, the following vulnerability has been resolved: VMCI: fix race between vmci_host_setup_notify and vmci_ctx_unset_notify During our test, it is found that a warning can be trigger in try_grab_folio as follow: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1678 at mm/gup.c:147 try_grab_folio+0x106/0x130 Modules linked in: CPU: 0 UID: 0 PID: 1678 Comm: syz.3.31 Not tainted 6.15.0-rc5 #163 PREEMPT(undef) RIP: 0010:try_grab_folio+0x106/0x130 Call Trace: <TASK> follow_huge_pmd+0x240/0x8e0 follow_pmd_mask.constprop.0.isra.0+0x40b/0x5c0 follow_pud_mask.constprop.0.isr...
In the Linux kernel, the following vulnerability has been resolved: VMCI: fix race between vmci_host_setup_notify and vmci_ctx_unset_notify During our test, it is found that a warning can be trigger in try_grab_folio as follow: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1678 at mm/gup.c:147 try_grab_folio+0x106/0x130 Modules linked in: CPU: 0 UID: 0 PID: 1678 Comm: syz.3.31 Not tainted 6.15.0-rc5 #163 PREEMPT(undef) RIP: 0010:try_grab_folio+0x106/0x130 Call Trace: <TASK> follow_huge_pmd+0x240/0x8e0 follow_pmd_mask.constprop.0.isra.0+0x40b/0x5c0 follow_pud_mask.constprop.0.isr...
Linux Linux, linux kernel, debian linux의 현재 전체 버전이 공식 영향 범위(Linux Linux, linux kernel, debian linux >= a1d88436d53a75e950db15834b3d2f8c0c358fdc < 74095bbbb19ca74a0368d857603a2438c88ca86c, >= a1d88436d53a75e950db15834b3d2f8c0c358fdc < 468aec888f838ce5174b96e0cb4396790d6f60ca, >= a1d88436d53a75e950db15834b3d2f8c0c358fdc < b4209e4b778e4e57d0636e1c9fc07a924dbc6043, >= a1d88436d53a75e950db15834b3d2f8c0c358fdc < 58a90db70aa6616411e5f69d1982d9b1dd97d774, >= a1d88436d53a75e950db15834b3d2f8c0c358fdc < 6e3af836805ed1d7a699f76ec798626198917aa4, >= a1d88436d53a75e950db15834b3d2f8c0c358fdc < 00ddc7dad55b7bbb78df80d6e174d0c4764dea0c, >= a1d88436d53a75e950db15834b3d2f8c0c358fdc < 75b5313c80c39a26d27cbb602f968a05576c36f9, >= a1d88436d53a75e950db15834b3d2f8c0c358fdc < 1bd6406fb5f36c2bb1e96e27d4c3e9f4d09edde4, >= 4.0, >= 4.0 < 5.4.296, >= 5.5 < 5.10.240, >= 5.11 < 5.15.186, >= 5.16 < 6.1.142, >= 6.2 < 6.6.94, >= 6.7 < 6.12.34, >= 6.13 < 6.15.3, 11.0)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(5.4.296, 5.10.240, 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3)은 보조 근거로만 사용하고, 공급사 공식 보안 권고에서 조치 기준을 재확인합니다.
조치 후 확인사항
패치 후 같은 명령으로 전체 버전을 다시 확인해 Linux Linux, linux kernel, debian linux 5.4.296, 5.10.240, 5.15.186, 6.1.142, 6.6.94, 6.12.34, 6.15.3 기준을 충족하는지 확인합니다. 이어서 경쟁 조건·TOCTOU 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
