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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, we reported "[linux-next:master] [alloc_tag] a9c60bb0d0: BUG:KASAN:vmalloc-out-of-bounds_in_load_module" in https://lore.kernel.org/all/202410281441.216670ac-lkp@intel.com/ we noticed it seems there is following patch. we made below report just FYI that the commit still cause similar issue on linux-next/master and not fixed on tip of linux-next/master when this bisect is done. kernel test robot noticed "BUG:KASAN:vmalloc-out-of-bounds_in_move_module" on: commit: 0f9b685626daa2f8e19a9788625c9b624c223e45 ("alloc_tag: populate memory for module tags as needed") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master 929beafbe7acce3267c06115e13e03ff6e50548a] in testcase: rcuscale version: with following parameters: runtime: 300s scale_type: srcu config: x86_64-randconfig-014-20241107 compiler: gcc-12 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) +------------------------------------------------+------------+------------+ | | 0db6f8d782 | 0f9b685626 | +------------------------------------------------+------------+------------+ | boot_successes | 18 | 0 | | boot_failures | 0 | 18 | | BUG:KASAN:vmalloc-out-of-bounds_in_move_module | 0 | 18 | | BUG:unable_to_handle_page_fault_for_address | 0 | 18 | | Oops | 0 | 18 | | RIP:kasan_metadata_fetch_row | 0 | 18 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 18 | +------------------------------------------------+------------+------------+ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202411132111.6a221562-lkp@intel.com [ 153.897376][ T402] BUG: KASAN: vmalloc-out-of-bounds in move_module (kernel/module/main.c:2357) [ 153.899141][ T402] Write of size 40 at addr ffffffffa0000000 by task modprobe/402 [ 153.900837][ T402] [ 153.901496][ T402] CPU: 0 UID: 0 PID: 402 Comm: modprobe Tainted: G T 6.12.0-rc6-00146-g0f9b685626da #1 87c8486a909ba2f90eff061a4c9c1fa5c9cd90ea [ 153.904537][ T402] Tainted: [T]=RANDSTRUCT [ 153.905500][ T402] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 153.907702][ T402] Call Trace: [ 153.908510][ T402] [ 153.909241][ T402] print_address_description+0x65/0x2fa [ 153.910663][ T402] print_report (mm/kasan/report.c:489) [ 153.911771][ T402] ? move_module (kernel/module/main.c:2357) [ 153.912825][ T402] kasan_report (mm/kasan/report.c:603) [ 153.913821][ T402] ? move_module (kernel/module/main.c:2357) [ 153.914904][ T402] kasan_check_range (mm/kasan/generic.c:183 mm/kasan/generic.c:189) [ 153.916029][ T402] __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 1)) [ 153.917057][ T402] move_module (kernel/module/main.c:2357) [ 153.918071][ T402] layout_and_allocate+0x446/0x523 [ 153.919459][ T402] load_module (kernel/module/main.c:2985) [ 153.920457][ T402] ? mode_strip_umask (fs/namei.c:3248) [ 153.921557][ T402] init_module_from_file (kernel/module/main.c:3266) [ 153.922825][ T402] ? __ia32_sys_init_module (kernel/module/main.c:3266) [ 153.923992][ T402] ? __lock_release+0x106/0x38c [ 153.925173][ T402] ? idempotent_init_module (kernel/module/main.c:3301) [ 153.926364][ T402] ? lock_release (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5848) [ 153.944053][ T402] idempotent_init_module (kernel/module/main.c:3302) [ 153.945164][ T402] ? init_module_from_file (kernel/module/main.c:3294) [ 153.946268][ T402] ? security_capable (security/security.c:1143) [ 153.947421][ T402] __do_sys_finit_module (include/linux/file.h:68 kernel/module/main.c:3330) [ 153.948495][ T402] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 153.949540][ T402] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 153.950855][ T402] RIP: 0033:0x7f0f37df7719 [ 153.951869][ T402] Code: 08 89 e8 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d b7 06 0d 00 f7 d8 64 89 01 48 All code ======== 0: 08 89 e8 5b 5d c3 or %cl,-0x3ca2a418(%rcx) 6: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) d: 00 00 00 10: 90 nop 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d b7 06 0d 00 mov 0xd06b7(%rip),%rcx # 0xd06f1 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d b7 06 0d 00 mov 0xd06b7(%rip),%rcx # 0xd06c7 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W [ 153.955810][ T402] RSP: 002b:00007ffccd7f7198 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 153.957666][ T402] RAX: ffffffffffffffda RBX: 000055cc9f9fddd0 RCX: 00007f0f37df7719 [ 153.959411][ T402] RDX: 0000000000000000 RSI: 000055cc9f9f24a0 RDI: 0000000000000004 [ 153.961142][ T402] RBP: 000055cc9f9f24a0 R08: 0000000000000000 R09: 000055cc9f9ff250 [ 153.962910][ T402] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000040000 [ 153.964665][ T402] R13: 0000000000000000 R14: 000055cc9f9fdd80 R15: 0000000000000000 [ 153.966393][ T402] [ 153.967209][ T402] [ 153.967856][ T402] Memory state around the buggy address: [ 153.969123][ T402] BUG: unable to handle page fault for address: fffffbfff3ffffe0 [ 153.970807][ T402] #PF: supervisor read access in kernel mode [ 153.972036][ T402] #PF: error_code(0x0000) - not-present page [ 153.973220][ T402] PGD 417fdb067 P4D 417fdb067 PUD 417fd7067 PMD 0 [ 153.974560][ T402] Oops: Oops: 0000 [#1] PREEMPT KASAN [ 153.975758][ T402] CPU: 0 UID: 0 PID: 402 Comm: modprobe Tainted: G T 6.12.0-rc6-00146-g0f9b685626da #1 87c8486a909ba2f90eff061a4c9c1fa5c9cd90ea [ 153.978853][ T402] Tainted: [T]=RANDSTRUCT [ 153.979851][ T402] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 153.982008][ T402] RIP: 0010:kasan_metadata_fetch_row (mm/kasan/report_generic.c:186) [ 153.983368][ T402] Code: 40 08 48 89 43 58 5b 31 c0 31 d2 31 c9 31 f6 31 ff c3 cc cc cc cc 66 0f 1f 00 b8 ff ff 37 00 48 c1 ee 03 48 c1 e0 2a 48 01 c6 <48> 8b 06 48 89 07 48 8b 46 08 48 89 47 08 31 c0 31 f6 31 ff c3 cc All code ======== 0: 40 08 48 89 rex or %cl,-0x77(%rax) 4: 43 58 rex.XB pop %r8 6: 5b pop %rbx 7: 31 c0 xor %eax,%eax 9: 31 d2 xor %edx,%edx b: 31 c9 xor %ecx,%ecx d: 31 f6 xor %esi,%esi f: 31 ff xor %edi,%edi 11: c3 ret 12: cc int3 13: cc int3 14: cc int3 15: cc int3 16: 66 0f 1f 00 nopw (%rax) 1a: b8 ff ff 37 00 mov $0x37ffff,%eax 1f: 48 c1 ee 03 shr $0x3,%rsi 23: 48 c1 e0 2a shl $0x2a,%rax 27: 48 01 c6 add %rax,%rsi 2a:* 48 8b 06 mov (%rsi),%rax <-- trapping instruction 2d: 48 89 07 mov %rax,(%rdi) 30: 48 8b 46 08 mov 0x8(%rsi),%rax 34: 48 89 47 08 mov %rax,0x8(%rdi) 38: 31 c0 xor %eax,%eax 3a: 31 f6 xor %esi,%esi 3c: 31 ff xor %edi,%edi 3e: c3 ret 3f: cc int3 Code starting with the faulting instruction =========================================== 0: 48 8b 06 mov (%rsi),%rax 3: 48 89 07 mov %rax,(%rdi) 6: 48 8b 46 08 mov 0x8(%rsi),%rax a: 48 89 47 08 mov %rax,0x8(%rdi) e: 31 c0 xor %eax,%eax 10: 31 f6 xor %esi,%esi 12: 31 ff xor %edi,%edi 14: c3 ret 15: cc int3 [ 153.987254][ T402] RSP: 0018:ffffc9000218f9f8 EFLAGS: 00010082 [ 153.988595][ T402] RAX: dffffc0000000000 RBX: ffffffff9fffff00 RCX: 0000000000000000 [ 153.990325][ T402] RDX: 0000000000000000 RSI: fffffbfff3ffffe0 RDI: ffffc9000218fa04 [ 153.992086][ T402] RBP: 00000000fffffffe R08: 0000000000000000 R09: 0000000000000000 [ 153.993786][ T402] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffa0000000 [ 153.995554][ T402] R13: ffffffff864b4994 R14: ffffffff9fffff80 R15: 0000000000000028 [ 153.997305][ T402] FS: 00007f0f37cf5040(0000) GS:ffffffff86989000(0000) knlGS:0000000000000000 [ 153.999133][ T402] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 154.000578][ T402] CR2: fffffbfff3ffffe0 CR3: 0000000128853000 CR4: 00000000000006b0 [ 154.002367][ T402] Call Trace: [ 154.003318][ T402] [ 154.004087][ T402] ? __die_body (arch/x86/kernel/dumpstack.c:421) [ 154.005074][ T402] ? page_fault_oops (arch/x86/mm/fault.c:710) [ 154.006242][ T402] ? show_fault_oops (arch/x86/mm/fault.c:643) [ 154.007368][ T402] ? search_module_extables (kernel/module/main.c:3369) [ 154.008525][ T402] ? fixup_exception (arch/x86/mm/extable.c:321) [ 154.009629][ T402] ? exc_page_fault (arch/x86/mm/fault.c:1479 arch/x86/mm/fault.c:1539) [ 154.010771][ T402] ? asm_exc_page_fault (arch/x86/include/asm/idtentry.h:623) [ 154.011853][ T402] ? kasan_metadata_fetch_row (mm/kasan/report_generic.c:186) [ 154.013072][ T402] print_report (mm/kasan/report.c:466 mm/kasan/report.c:489) [ 154.014122][ T402] ? move_module (kernel/module/main.c:2357) [ 154.015238][ T402] kasan_report (mm/kasan/report.c:603) [ 154.016231][ T402] ? move_module (kernel/module/main.c:2357) [ 154.017255][ T402] kasan_check_range (mm/kasan/generic.c:183 mm/kasan/generic.c:189) [ 154.018379][ T402] __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 1)) [ 154.019400][ T402] move_module (kernel/module/main.c:2357) [ 154.020435][ T402] layout_and_allocate+0x446/0x523 [ 154.021792][ T402] load_module (kernel/module/main.c:2985) [ 154.022822][ T402] ? mode_strip_umask (fs/namei.c:3248) [ 154.023928][ T402] init_module_from_file (kernel/module/main.c:3266) [ 154.025069][ T402] ? __ia32_sys_init_module (kernel/module/main.c:3266) [ 154.026265][ T402] ? __lock_release+0x106/0x38c [ 154.027496][ T402] ? idempotent_init_module (kernel/module/main.c:3301) [ 154.028688][ T402] ? lock_release (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5848) [ 154.029766][ T402] idempotent_init_module (kernel/module/main.c:3302) [ 154.030985][ T402] ? init_module_from_file (kernel/module/main.c:3294) [ 154.032192][ T402] ? security_capable (security/security.c:1143) [ 154.033310][ T402] __do_sys_finit_module (include/linux/file.h:68 kernel/module/main.c:3330) [ 154.034478][ T402] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 154.035532][ T402] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 154.036819][ T402] RIP: 0033:0x7f0f37df7719 [ 154.037865][ T402] Code: 08 89 e8 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d b7 06 0d 00 f7 d8 64 89 01 48 All code ======== 0: 08 89 e8 5b 5d c3 or %cl,-0x3ca2a418(%rcx) 6: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) d: 00 00 00 10: 90 nop 11: 48 89 f8 mov %rdi,%rax 14: 48 89 f7 mov %rsi,%rdi 17: 48 89 d6 mov %rdx,%rsi 1a: 48 89 ca mov %rcx,%rdx 1d: 4d 89 c2 mov %r8,%r10 20: 4d 89 c8 mov %r9,%r8 23: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d b7 06 0d 00 mov 0xd06b7(%rip),%rcx # 0xd06f1 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d b7 06 0d 00 mov 0xd06b7(%rip),%rcx # 0xd06c7 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20241113/202411132111.6a221562-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki