Buildresult: linus/mips-defconfig/mipsel-gcc5 built on Sep 6 2019, 12:35
kisskb
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Status:
OK
Date/Time:
Sep 6 2019, 12:35
Duration:
0:02:08.543397
Builder:
blade4b
Revision:
keys: Fix missing null pointer check in request_key_auth_describe() (
d41a3effbb53b1bcea41e328d16a4d046a508381)
Target:
linus/mips-defconfig/mipsel-gcc5
Branch:
linus
Compiler:
mipsel-gcc5
(mipsel-linux-gcc.br_real (Buildroot 2016.11-git-00613-ge98b4dd) 5.4.0 / GNU ld (GNU Binutils) 2.26.1)
Config:
defconfig
(
download
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Log:
Download original
Possible warnings (2)
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
Full Log
# git rev-parse -q --verify d41a3effbb53b1bcea41e328d16a4d046a508381^{commit} d41a3effbb53b1bcea41e328d16a4d046a508381 already have revision, skipping fetch # git checkout -q -f -B kisskb d41a3effbb53b1bcea41e328d16a4d046a508381 # git clean -qxdf # < git log -1 # commit d41a3effbb53b1bcea41e328d16a4d046a508381 # Author: Hillf Danton <hdanton@sina.com> # Date: Mon Sep 2 13:37:29 2019 +0100 # # keys: Fix missing null pointer check in request_key_auth_describe() # # If a request_key authentication token key gets revoked, there's a window in # which request_key_auth_describe() can see it with a NULL payload - but it # makes no check for this and something like the following oops may occur: # # BUG: Kernel NULL pointer dereference at 0x00000038 # Faulting instruction address: 0xc0000000004ddf30 # Oops: Kernel access of bad area, sig: 11 [#1] # ... # NIP [...] request_key_auth_describe+0x90/0xd0 # LR [...] request_key_auth_describe+0x54/0xd0 # Call Trace: # [...] request_key_auth_describe+0x54/0xd0 (unreliable) # [...] proc_keys_show+0x308/0x4c0 # [...] seq_read+0x3d0/0x540 # [...] proc_reg_read+0x90/0x110 # [...] __vfs_read+0x3c/0x70 # [...] vfs_read+0xb4/0x1b0 # [...] ksys_read+0x7c/0x130 # [...] system_call+0x5c/0x70 # # Fix this by checking for a NULL pointer when describing such a key. # # Also make the read routine check for a NULL pointer to be on the safe side. # # [DH: Modified to not take already-held rcu lock and modified to also check # in the read routine] # # Fixes: 04c567d9313e ("[PATCH] Keys: Fix race between two instantiators of a key") # Reported-by: Sachin Sant <sachinp@linux.vnet.ibm.com> # Signed-off-by: Hillf Danton <hdanton@sina.com> # Signed-off-by: David Howells <dhowells@redhat.com> # Tested-by: Sachin Sant <sachinp@linux.vnet.ibm.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-gcc --version # < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-ld --version # < git log --format=%s --max-count=1 d41a3effbb53b1bcea41e328d16a4d046a508381 # < make -s -j 24 ARCH=mips O=/kisskb/build/linus_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux- defconfig # make -s -j 24 ARCH=mips O=/kisskb/build/linus_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux- <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] FIT description: Linux 5.3.0-rc7-gd41a3effbb53 Created: Fri Sep 6 12:37:43 2019 Image 0 (kernel@0) Description: Linux 5.3.0-rc7-gd41a3effbb53 Created: Fri Sep 6 12:37:43 2019 Type: Kernel Image Compression: gzip compressed Data Size: 4710316 Bytes = 4599.92 KiB = 4.49 MiB Architecture: MIPS OS: Linux Load Address: 0x80100000 Entry Point: 0x808af810 Hash algo: sha1 Hash value: fbe35afddc35d2e18f099def5cc40d60295ebcf4 Image 1 (fdt@boston) Description: img,boston Device Tree Created: Fri Sep 6 12:37:43 2019 Type: Flat Device Tree Compression: uncompressed Data Size: 3793 Bytes = 3.70 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 4799f50d688573234da6e9d7701234d394759ef4 Image 2 (fdt@ni169445) Description: NI 169445 device tree Created: Fri Sep 6 12:37:43 2019 Type: Flat Device Tree Compression: uncompressed Data Size: 1871 Bytes = 1.83 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 51b89b31605ee62038c8468c429af091dfc75ec7 Image 3 (fdt@ocelot_pcb123) Description: MSCC Ocelot PCB123 Device Tree Created: Fri Sep 6 12:37:43 2019 Type: Flat Device Tree Compression: uncompressed Data Size: 4615 Bytes = 4.51 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 8754eadee600cac22c9c34884cd901aac7e95e8a Image 4 (fdt@ocelot_pcb120) Description: MSCC Ocelot PCB120 Device Tree Created: Fri Sep 6 12:37:43 2019 Type: Flat Device Tree Compression: uncompressed Data Size: 5174 Bytes = 5.05 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 1ab7d0871c0a9345c6269fb491bf028224da8256 Image 5 (fdt@xilfpga) Description: MIPSfpga (xilfpga) Device Tree Created: Fri Sep 6 12:37:43 2019 Type: Flat Device Tree Compression: uncompressed Data Size: 2708 Bytes = 2.64 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 63d058b780f65e22da30f0a183433765f1807f1d Default Configuration: 'conf@default' Configuration 0 (conf@default) Description: Generic Linux kernel Kernel: kernel@0 Configuration 1 (conf@boston) Description: Boston Linux kernel Kernel: kernel@0 FDT: fdt@boston Configuration 2 (conf@ni169445) Description: NI 169445 Linux Kernel Kernel: kernel@0 FDT: fdt@ni169445 Configuration 3 (conf@ocelot_pcb123) Description: Ocelot Linux kernel Kernel: kernel@0 FDT: fdt@ocelot_pcb123 Configuration 4 (conf@ocelot_pcb120) Description: Ocelot Linux kernel Kernel: kernel@0 FDT: fdt@ocelot_pcb120 Configuration 5 (conf@xilfpga) Description: MIPSfpga Linux kernel Kernel: kernel@0 FDT: fdt@xilfpga Completed OK # rm -rf /kisskb/build/linus_mips-defconfig_mipsel # Build took: 0:02:08.543397
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