Comments (4)
Grazfather
commented on May 7, 2024
Ah. The issue is that if the type is a pointer gef tries to dereference it. If it fails, then it prints 0.
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Grazfather
commented on May 7, 2024
Fixed in #72
gef➤ x/20gx 0x602000
0x602000: 0x0000000000000000 0x0000000000000021
0x602010: 0x0000000000000000 0x0000000000000000
0x602020: 0x0000000000000000 0x0000000000000021 # Value is 0x21
0x602030: 0x0000000000000000 0x0000000000000000
0x602040: 0x0000000000000000 0x0000000000000021
0x602050: 0x0000000000000000 0x0000000000000000
0x602060: 0x0000000000000000 0x0000000000020fa1
0x602070: 0x0000000000000000 0x0000000000000000
0x602080: 0x0000000000000000 0x0000000000000000
0x602090: 0x0000000000000000 0x0000000000000000
gef➤ dt mchunk 0x602020
0x602020+0x0000 prev_size : 0x0000000000000000 (c_ulong)
0x602020+0x0008 size : 0x0000000000000021 (c_ulong) # 😀
0x602020+0x0010 FD : 0x0000000000000000 (c_ulong)
0x602020+0x0018 BK : 0x0000000000000000 (c_ulong)
0x602020+0x0020 fd_nextsize : 0x0000000000000000 (c_ulong)
0x602020+0x0028 bk_nextsize : 0x0000000000000021 (c_ulong)
gef➤ x/gx 0x602028
0x602028: 0x0000000000000021
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hugsy
commented on May 7, 2024
😎
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Grazfather
commented on May 7, 2024
💥
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