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[syzbot] [wireless?] KASAN: slab-out-of-bounds Read in cfg80211_wext_freq (2) | 0 (1) | 2024/08/17 19:12 |
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[syzbot] [wireless?] KASAN: slab-out-of-bounds Read in cfg80211_wext_freq (2) | 0 (1) | 2024/08/17 19:12 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KASAN: slab-out-of-bounds Read in cfg80211_wext_freq wireless | C | inconclusive | 133 | 80d | 106d | 26/27 | fixed on 2024/07/09 19:14 | |
linux-6.1 | KASAN: slab-out-of-bounds Read in cfg80211_wext_freq origin:lts-only | C | done | 48 | 49d | 95d | 0/3 | upstream: reported C repro on 2024/06/09 04:12 | |
linux-5.15 | KASAN: slab-out-of-bounds Read in cfg80211_wext_freq origin:lts-only | C | error | 71 | 48d | 91d | 0/3 | upstream: reported C repro on 2024/06/13 10:59 |
================================================================== BUG: KASAN: slab-out-of-bounds in cfg80211_wext_freq+0x170/0x1ac net/wireless/wext-compat.c:238 Read of size 2 at addr ffff0000cbece140 by task syz.3.369/7789 CPU: 1 PID: 7789 Comm: syz.3.369 Tainted: G W 6.10.0-rc2-syzkaller-g8867bbd4a056 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x198/0x538 mm/kasan/report.c:488 kasan_report+0xd8/0x138 mm/kasan/report.c:601 __asan_report_load2_noabort+0x20/0x2c mm/kasan/report_generic.c:379 cfg80211_wext_freq+0x170/0x1ac net/wireless/wext-compat.c:238 cfg80211_wext_siwscan+0x438/0xef0 net/wireless/scan.c:3447 ioctl_standard_iw_point+0x7f0/0xdc4 net/wireless/wext-core.c:867 ioctl_standard_call+0xcc/0x264 net/wireless/wext-core.c:1052 wext_ioctl_dispatch+0x1b4/0x534 net/wireless/wext-core.c:1016 wext_handle_ioctl+0x1f8/0x3f4 net/wireless/wext-core.c:1077 sock_ioctl+0x15c/0x838 net/socket.c:1275 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Allocated by task 7789: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x40/0x78 mm/kasan/common.c:68 kasan_save_alloc_info+0x40/0x50 mm/kasan/generic.c:565 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slub.c:4121 [inline] __kmalloc_noprof+0x2a0/0x494 mm/slub.c:4134 kmalloc_noprof include/linux/slab.h:664 [inline] kzalloc_noprof include/linux/slab.h:778 [inline] ioctl_standard_iw_point+0x3b8/0xdc4 net/wireless/wext-core.c:828 ioctl_standard_call+0xcc/0x264 net/wireless/wext-core.c:1052 wext_ioctl_dispatch+0x1b4/0x534 net/wireless/wext-core.c:1016 wext_handle_ioctl+0x1f8/0x3f4 net/wireless/wext-core.c:1077 sock_ioctl+0x15c/0x838 net/socket.c:1275 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 The buggy address belongs to the object at ffff0000cbece000 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 4 bytes to the right of allocated 316-byte region [ffff0000cbece000, ffff0000cbece13c) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10becc head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) page_type: 0xffffefff(slab) raw: 05ffc00000000040 ffff0000c0001c80 0000000000000000 dead000000000001 raw: 0000000000000000 0000000080100010 00000001ffffefff 0000000000000000 head: 05ffc00000000040 ffff0000c0001c80 0000000000000000 dead000000000001 head: 0000000000000000 0000000080100010 00000001ffffefff 0000000000000000 head: 05ffc00000000002 fffffdffc32fb301 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000cbece000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000cbece080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000cbece100: 00 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc ^ ffff0000cbece180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000cbece200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in net/wireless/scan.c:3445:8 index 33 is out of range for type 'struct iw_freq[32]' CPU: 1 PID: 7789 Comm: syz.3.369 Tainted: G B W 6.10.0-rc2-syzkaller-g8867bbd4a056 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call trace: dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114 dump_stack+0x1c/0x28 lib/dump_stack.c:123 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_out_of_bounds+0xf8/0x148 lib/ubsan.c:429 cfg80211_wext_siwscan+0x4a8/0xef0 net/wireless/scan.c:3445 ioctl_standard_iw_point+0x7f0/0xdc4 net/wireless/wext-core.c:867 ioctl_standard_call+0xcc/0x264 net/wireless/wext-core.c:1052 wext_ioctl_dispatch+0x1b4/0x534 net/wireless/wext-core.c:1016 wext_handle_ioctl+0x1f8/0x3f4 net/wireless/wext-core.c:1077 sock_ioctl+0x15c/0x838 net/socket.c:1275 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 ---[ end trace ]---
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/14 00:12 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 8867bbd4a056 | f21a18ca | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in cfg80211_wext_freq | ||
2024/08/14 00:11 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 8867bbd4a056 | f21a18ca | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in cfg80211_wext_freq | ||
2024/08/13 23:11 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 8867bbd4a056 | f21a18ca | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in cfg80211_wext_freq | ||
2024/08/13 22:33 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 8867bbd4a056 | f21a18ca | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in cfg80211_wext_freq | ||
2024/08/13 19:09 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 8867bbd4a056 | f21a18ca | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in cfg80211_wext_freq | ||
2024/08/13 19:09 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 8867bbd4a056 | f21a18ca | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in cfg80211_wext_freq |