Bug 203559
| Summary: | usercopy_abort triggered by build_test_sglist | ||
|---|---|---|---|
| Product: | Memory Management | Reporter: | Mihai Donțu (mihai.dontu) |
| Component: | Other | Assignee: | Andrew Morton (akpm) |
| Status: | NEW --- | ||
| Severity: | low | CC: | kernel.org |
| Priority: | P1 | ||
| Hardware: | x86-64 | ||
| OS: | Linux | ||
| Kernel Version: | 5.1 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
kernel config
Screenshot |
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Created attachment 282819 [details]
Screenshot
Attached is a screenshot where I probably have the same issue on a P50.
Any progress here? (In reply to Mihai Donțu from comment #0) Try CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y Kernel boots fine here then. > Created attachment 282687 [details] > kernel config > > I have CONFIG_CRYPTO_FIPS and CONFIG_HARDENED_USERCOPY_PAGESPAN enabled from > an experiment I forgot about, that started triggering a crash very early at > boot with kernel 5.1: > > usercopy: Kernel memory overwrite attempt detected to spans multiple pages > (offset 0, size 372)! > ------------[ cut here]------------ > kernel BUG at mm/usercopy.c:102! > invalid opcode: 0000 [#1] PREEMPT SMP PTI > CPU: 0 PID: 42 Comm: cryptomgr_test Trainted: G T 5.1.0-gentoo #1 > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-1.fc28 > 04/01/2014 > RIP: 0010:usercopy_abort+0x87/0x89 > Code: c3 ae 48 c7 c6 c9 9c ba ae 41 55 48 c7 c7 38 9e bb ae 48 0f 45 d1 48 > c7 c1 51 > 9d bb ae 50 48 0f 45 f1 4c 89 e1 e8 fb 50 e8 ff <0f> 0b 49 89 d8 31 c9 > 44 89 > ea 31 f6 48 c7 c7 9a 9d bb ae e8 61 ff > ... > Call Trace: > __check_object_size.cold+0x16/0xa6 > build_test_sglist+0x283/0x370 > ? skcipher_walk_done+0x105/0x220 > ? ecb_crypt+0xa5/0x110 > build_cipher_test_sglist+0xa0/0x120 > test_skcipher_vec_cfg+0x1c4/0x6e0 > ... > > The information above is from a screenshot, thus some opcodes or offsets > might be wrong. > > The 5.0.13 kernel does not have this issue. |
Created attachment 282687 [details] kernel config I have CONFIG_CRYPTO_FIPS and CONFIG_HARDENED_USERCOPY_PAGESPAN enabled from an experiment I forgot about, that started triggering a crash very early at boot with kernel 5.1: usercopy: Kernel memory overwrite attempt detected to spans multiple pages (offset 0, size 372)! ------------[ cut here]------------ kernel BUG at mm/usercopy.c:102! invalid opcode: 0000 [#1] PREEMPT SMP PTI CPU: 0 PID: 42 Comm: cryptomgr_test Trainted: G T 5.1.0-gentoo #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-1.fc28 04/01/2014 RIP: 0010:usercopy_abort+0x87/0x89 Code: c3 ae 48 c7 c6 c9 9c ba ae 41 55 48 c7 c7 38 9e bb ae 48 0f 45 d1 48 c7 c1 51 9d bb ae 50 48 0f 45 f1 4c 89 e1 e8 fb 50 e8 ff <0f> 0b 49 89 d8 31 c9 44 89 ea 31 f6 48 c7 c7 9a 9d bb ae e8 61 ff ... Call Trace: __check_object_size.cold+0x16/0xa6 build_test_sglist+0x283/0x370 ? skcipher_walk_done+0x105/0x220 ? ecb_crypt+0xa5/0x110 build_cipher_test_sglist+0xa0/0x120 test_skcipher_vec_cfg+0x1c4/0x6e0 ... The information above is from a screenshot, thus some opcodes or offsets might be wrong. The 5.0.13 kernel does not have this issue.