| created | 2023-07-29T21:31:21Z |
|---|---|
| begin | 2023-07-24T00:00:00Z |
| end | 2023-07-25T00:00:00Z |
| path | src/sys |
| commits | 8 |
| date | 2023-07-24T14:02:36Z | |||
|---|---|---|---|---|
| author | jsg | |||
| files | src/sys/arch/i386/stand/libsa/pciprobe.c | log | diff | annotate |
| message |
after the boot block changes on i386, sthen noticed a dmesg change -pci0 at mainbus0 bus 0: configuration mode 1 (bios) +pci0 at mainbus0 bus 0: configuration mode 1 (no bios) deraadt then spent many hours narrowing down the problem to the inline assembly in pciprobe(). It tried to save the carry flag result of pci bios present. But did so after a shift which sets the carry flag. Ask for CF in the output and avoid the shift. ok deraadt@ kettenis@ |
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| date | 2023-07-24T14:53:58Z | |||
|---|---|---|---|---|
| author | deraadt | |||
| files | src/sys/arch/amd64/amd64/cpu.c | log | diff | annotate |
| message |
Set DE_CFG[9] -- a chickenbit which stops Zenbleed. The chickenbit may have other side-effects (not disclosed by AMD), and firmwares fixes may be better (and have other side-effects, same story). Newer processors will probably be validated more carefully by AMD. Issue found by Tavis Ormandy. This is errata 7.2/033_amdcpu.patch.sig and 7.3/011_amdcpu.patch.sig Zenbleed also blocked on select cpus by using errata 7.3/012_amdfirmware.patch.sig + 7.3/013_amdcpufirmware.patch / 7.2/034_amdfirmware.patch.sig + 7.2/035_amdcpufirmware.patch.sig which load AMD cpu firmwares (firmware.openbsd.org is updated often to contain the best firmwares) ok jsg |
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| date | 2023-07-24T14:54:00Z | |||
|---|---|---|---|---|
| author | deraadt | |||
| files | src/sys/arch/amd64/include/specialreg.h | log | diff | annotate |
| src/sys/arch/i386/i386/machdep.c | log | diff | annotate | |
| src/sys/arch/i386/include/specialreg.h | log | diff | annotate | |
| message |
Set DE_CFG[9] -- a chickenbit which stops Zenbleed. The chickenbit may have other side-effects (not disclosed by AMD), and firmwares fixes may be better (and have other side-effects, same story). Newer processors will probably be validated more carefully by AMD. Issue found by Tavis Ormandy. This is errata 7.2/033_amdcpu.patch.sig and 7.3/011_amdcpu.patch.sig Zenbleed also blocked on select cpus by using errata 7.3/012_amdfirmware.patch.sig + 7.3/013_amdcpufirmware.patch / 7.2/034_amdfirmware.patch.sig + 7.2/035_amdcpufirmware.patch.sig which load AMD cpu firmwares (firmware.openbsd.org is updated often to contain the best firmwares) ok jsg |
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| date | 2023-07-24T17:03:32Z | |||
|---|---|---|---|---|
| author | miod | |||
| files | src/sys/dev/wscons/wsemul_sun.c | log | diff | annotate |
| src/sys/dev/wscons/wsemul_vt100.c | log | diff | annotate | |
| message |
Make sure we do not increase the escape sequence argument count beyond usable bounds, in case escape sequences end up with too many semicolons. Without this, the kernel could be made to access random memory after receiving some specially crafted DCS or CSI terminal escape sequences. Reported by David Leadbeater (dgl, dgl dot cx) |
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| date | 2023-07-24T19:28:40Z | |||
|---|---|---|---|---|
| author | miod | |||
| files | src/sys/dev/wscons/wskbdraw.h | log | diff | annotate |
| message | Fix scan code value for print screen key. | |||
| date | 2023-07-24T19:29:39Z | |||
|---|---|---|---|---|
| author | miod | |||
| files | src/sys/dev/pckbc/pckbd.c | log | diff | annotate |
| message |
Use RAWKEY constants for scan code tables, rather than magic numbers. No functional change intended. |
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| date | 2023-07-24T19:32:23Z | |||
|---|---|---|---|---|
| author | miod | |||
| files | src/sys/kern/syscalls.master | log | diff | annotate |
| message |
Fix prototype of getlogin_r syscall to match userland prototype (use size_t for the length argument). Fortunately, this only affects 64-bit platforms and all of those would pass the argument in registers, so there is no BE64 regression to expect and no need to renumber that system call. Found with afresh1@ as part of his perl syscall emulator. |
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| date | 2023-07-24T19:33:29Z | |||
|---|---|---|---|---|
| author | miod | |||
| files | src/sys/kern/init_sysent.c | log | diff | annotate |
| src/sys/kern/syscalls.c | log | diff | annotate | |
| src/sys/sys/syscall.h | log | diff | annotate | |
| src/sys/sys/syscallargs.h | log | diff | annotate | |
| message | Regen | |||