CVE-2022-50497None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: binfmt_misc: fix shift-out-of-bounds in check_special_flags UBSAN reported a shift-out-of-bounds warning: left shift of 1 by 31 places cannot be represented in type …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
binfmt_misc: fix shift-out-of-bounds in check_special_flags
UBSAN reported a shift-out-of-bounds warning:
left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xcf lib/dump_stack.c:106 ubsan_epilogue+0xa/0x44 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds+0x1e7/0x208 lib/ubsan.c:322 check_special_flags fs/binfmt_misc.c:241 [inline] create_entry fs/binfmt_misc.c:456 [inline] bm_register_write+0x9d3/0xa20 fs/binfmt_misc.c:654 vfs_write+0x11e/0x580 fs/read_write.c:582 ksys_write+0xcf/0x120 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x34/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x4194e1
Since the type of Node's flags is unsigned long, we should define these macros with same type too.
Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0f1a48994b3e516d5c7fd5d12204fdba7a604771Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ea6145370be8016755c43aca799815fc4b8c88b1Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 97382a2639b1cd9631f6069061e9d7062cd2b098Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 419b808504c26b3e3342365f34ccd0843e09a7f8Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < dcbc51d31d0afbd45e830e3cf565a7b3ca7bf0d8Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 88cea1676a09f7c45a1438153a126610c33b1590Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a651bb5ff997b9f02662bcdef3d8b4e6f0d79656Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a91123d4bda463469f68f0427adabf8108001f94Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6a46bf558803dd2b959ca7435a5c143efe837217Linux 2.6.12Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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